Don't give up. Everyone goes through periods of ups and downs.
Elo going down and down, do I give up

Go to the Youtube channel "chess vibes" and take the quizzes which he did quite some time ago.
Test Yourself! Follow Along Chess Quiz With Analysis And Solutions - Weekly Quiz #1 - YouTube
I am only a 900 player but got better. I reviewed one of your games. You charged out and left pieces unprotected and then it was just mayhem. Find two opening (one for black and one for white.) Use them so you can get to the middle game unscathed. The London is especially cool because you pretty much play the same moves no matter what your opponent does until you reach middle game. (At least at this level once you go higher its a different story...)
I do London for white and pirc for black. Scan the board before making a move. I am in teh 900s and it is blunderland. The person who blunders least wins at my level. If you can play a game without blundering and spot eneny pieces that are unprotected I bet you will be sitting in the 900s. You will get there no problem following this advice. With that said I still suck....

I think until you are 700 play 15+10
30 min and longer games I think are good for improving from 1000+... You need to build the capacity to concentrate this long and actually use the time wisely...
10 min is categorized as Blitz on some websites, and rightfully so.
You can play it, just if you play mostly 15+10 games and one 10 min game now and then that's fine...
Also, with all due respect; Gothamchess is a great player, great clickbait artist, great at summarizing "how to play this or that opening" in short videos. His analysis is brilliant and his jokes and occassional awkward rap in guess the elo is genius... But... I'm not sure how educational it really is. Like his focus is to be entertaining...
The real educators on youtube for beginners are Ben Finegold , Jonathan Shrantz (underrated dude), Yasser, and i really like the series "Building Habits" by Aman Hambleton.
There are probably others I'm forgetting but those guys were the most helpful to me...
And when you do puzzles... try to do 10 a day and actually figue each one out to some extent before you solve; don't just play moves in puzzles like "it feeeels like it should be this". No. Feeeeeels is not why you do puzzles. Calculate stuff.
Good luck

You can watch all the videos you want. But if youre going to play speed chess and not give yourself time to think. Then what youre experiencing is what you get.
speedchess has nothing to do with it. IF he wants to get good at speedchess he'll just have to take the time to analyze his games and do puzzles and lessons.
I was all the way down to rating 100 a couples times. Been playing 9 months and i'm only rating 600 and feel i have peaked lol. I was going to quit too. What kept me in the game is I bought a chessbook for beginners and made an account on lichess.org and I play on both sites. For some reason that helped me, I guess so I don't have to pay attention to all the forum posters here that put pressure on me and disparage my rating.
Also even at 300 rating you can get competitive matches which is the beauty of online chess. Don't listen to the people giving you false expectations about how you should be a certain rating. They just have egos and superiority complexes. Rating shouldn't even matter. Most people are only rated 600 and the average rating on the site is only 800. If you look at half the trolls in here they don't even play games on their accounts. They too scared. most of the playerbase makes a new account every year so don't believe they are new. Just play to have fun and don't over do it.
That was very nice of you bro.. and yes bro (telling to the one who created the forum) you should note down this comment.. just enjoy and meanwhile improve.. but don't take failures too serious and listen to nonsense

Play a longer time control so you can do a "mental blunder check" before each move. Before you make your move, look around and see what threats exist for your opponent if you make that move. This is where you'll stop hanging pieces so much and as a result stop losing games to careless blunders.
Here are some important tips:
*Develop all your pieces to their best squares and castle before you start any attack.
*Aim to control the center.
*Put your rooks on open files to control them.
*Put your knights on central outposts to attack and defend more squares.
*Create open lines (diagonals for your bishops and files for your rooks and queen)
with pawn captures.
*Learn the King before pawn on 6th rank winning end game position.
*Do hundreds then thousands of puzzles.
*Learn how to create passed pawns.
*Rooks belong behind passed pawns.
*Practice a bunch of mate in 1 puzzles and mate in 2 puzzles.
*Learn the staircase checkmate.
*Choose 1 opening with white and 2 for black (1 against 1.e4 and another against d4 and everything else).
*Analyze your lost games to see what blunder cost you the game so you don't get beat by the same mistake ever again.
*Learn winning endings so you can work backwards and plan middle games you can get from openings to steer the positions to those wins.
*****After completing these tasks, report back here in one year so we can assess your progress.
If you are feeling too much pressure to win (or sadness when losing), play the bots. No pressure, they are fun and can be instructional. If you are at least a gold member you can play all the bots. Almost all the levels from 250 to the 2000's have three bots at the same level. Start with the beginner bots and move up. If you feel like you are losing, you can always just resign and then analyze the game to see where you went wrong. You may find it challenging and rewarding at the same time. Of course, some of the bots just blunder ridiculously, but if they do you still have to figure out how to win.
Either just play via opening principles or learn a couple of system openings as suggested before. Puzzles can be great to learn patterns, but in puzzles you know there is something to find. In a game, you don't have that.

Play a longer time control so you can do a "mental blunder check" before each move. Before you make your move, look around and see what threats exist for your opponent if you make that move. This is where you'll stop hanging pieces so much and as a result stop losing games to careless blunders.
Here are some important tips:
*Develop all your pieces to their best squares and castle before you start any attack.
*Aim to control the center.
*Put your rooks on open files to control them.
*Put your knights on central outposts to attack and defend more squares.
*Create open lines (diagonals for your bishops and files for your rooks and queen)
with pawn captures.
*Learn the King before pawn on 6th rank winning end game position.
*Do hundreds then thousands of puzzles.
*Learn how to create passed pawns.
*Rooks belong behind passed pawns.
*Practice a bunch of mate in 1 puzzles and mate in 2 puzzles.
*Learn the staircase checkmate.
*Choose 1 opening with white and 2 for black (1 against 1.e4 and another against d4 and everything else).
*Analyze your lost games to see what blunder cost you the game so you don't get beat by the same mistake ever again.
*Learn winning endings so you can work backwards and plan middle games you can get from openings to steer the positions to those wins.
*****After completing these tasks, report back here in one year so we can assess your progress.
But you can't stop playing blitz or you will get even worse. Slower time controls can help, but you still need to develop the exercised skills necessary. like fast tactical vision and pattern recognition. Slower chess can boost morale since its much easier to get a higher rating, but you still have to adapt to the shorter time control if that is what you aspire to play. Repetition always helps as long as you don't mind losing lots of games.
I didn't say to stop playing blitz. I said to play a longer time control that has enough time to do a mental blunder check before each move. Longer just means more time than current. So if he is playing 3 minutes blitz and doesn't think that's enough time to do the mental blunder check, then the longer 5 minutes time control or even 8 minutes is still "blitz" and provides enough time to do the mental blunder check before each move. Improvement is the goal, not adaptation to time controls. Once there is a relatively satisfactory proficiency overall, then one can reasonably anticipate to be proficient overall regardless of the time control while still practicing different time controls to adapt regardless of whatever time control is played.

autumncurtis wrote: "Progress is not linear 🧡 you will have ups and downs in every aspect of your life!"
It is not an either/or proposition. Progress can be linear. Just because progress can be linear doesn't mean one will not have ups and downs in their life though. One only needs to experience natural linear progression to know progress, indeed, can be linear.

If you are losing too many games and are suffering with low confidence, it is a good idea to take a short break from the games and invest your time in practice puzzles instead. Aim to get your puzzle rating up to 1000, then 1100, then 1200 and so on.
This will give you the tactical skills that you need to win more games.
Those who are beginners in chess don't play straight online matches, at first learn from the lesson in chess.com.... Learn the basic things in chess then you are ready to play matches

Ultimately, unless you are a professional chess player who's income is dependent on their ELO going up, you shouldn't really care if your ELO goes down.
Just focus on learning more and having fun while doing it.
Life is short.

Never give up, I do not think you can get a negative elo, therefore your elo cannot get down forever

Never give up, I do not think you can get a negative elo, therefore your elo cannot get down forever
Only time to quit chess is if you are getting destroyed at rating 100 imo. Which was literally me at one point lol. Otherwise the beauty of this website is millions of playing at all levels and match maker to help ensure competitive matches which is what its all about.
with such great brain exercise

Those who are beginners in chess don't play straight online matches, at first learn from the lesson in chess.com.... Learn the basic things in chess then you are ready to play matches
exactly.. matches are good if you take it light not when you take it seriously and go to topic of quit.. just calm down revisit your mistakes and play again
Take a mini break, your brain may be overheating. (Not joking)