idk
Why I am so bad?

If you want to improve a lot
1) Pick one opening as white and one as black. Do some tutorial videos and make sure you can get 6-10 moves into your game without making a mistake.
2) You need to work on your board vision. Puzzles are really good for this and you need less time to play puzzles than you do games. When you do the puzzles go SLOWLY. Try to figure out the answer before moving pieces. Give yourself a full minute of looking before just "trying" something or looking at hints. Then if you fail, make sure you work it to a conclusion. Look back and understand what you were supposed to notice in the original position.
3) If you are blundering pieces, before you place a piece, just look down the vertical/horizontal lines and make sure there isn't a R or Q there. Look down the diagonals for a bishop. Then check for any nearby Ns who can hit that square. As you get better, you will want to look for possible discovered attacks when you look down the diagonals and rows/files.
4) Try to arrange your pieces so that you aren't floating something out into open space unprotected without at least having plans to protect it (or continue an attack). Your ELO will go up a lot if you just make your opponent work for the pieces that they take.
5) Just focus on the basics. Fight for control of the center. Focus on developing your pieces. Castle by move 10.
If you just do some of the above you can go up 100-200 ELO points.
I noticed there are a couple people above 2000 ELO giving advice. Everything they say is correct, but you don't need to do all of that to improve and some of it seemed a bit advanced for where you are now. I'm not a golfer, but I once took some lessons and my instructor told me to focus on one swing thought at a time. It's good advice. Look at where you are making mistakes and focus on that. (BTW, the lesson on chess.com have some good topics and integrate practice, so that would be another way to do that.)

Pedro, do you really think that you can calculate 6 moves ahead? So why you keep blundering your queen in one move? For example you play your queen on g4 where it can be captured with noth knight from f6 and bishop from c8. It is ridiculous. Chess game is a dialogue. You have to think for your opponent. You should look at every single opponent piece one after another and visualise “this can move there, there, there and there so i should not move my pieces on these squares.” Obviously you can’t do this in blitz game if you play only for 2 months. You should play at least 10+ 5 games if you want to improve. Feel free to play 3 hours of blitz if you enjoy it but i say you that you will never improve this way.
Yes, Isaw that game, thats why Isuggested blunderchecls..for a while and no very quick games.

I wonder how many people actually could calculate 6 moves ahead. I can do it for a forcing line. I'm pretty sure everyone could do it for a ladder checkmate. I find that on the few times that I calculate a long line I'm attacking and I see an idea but I see blockers to my idea so I work backwards from the idea until the blockers are removed. But often the real world gets in the way and the line isn't forcing and then it gets too hard. More often than not, I have a general idea of a strategy rather than a specific line.

Hi there,
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Thank you everyone for the time you took to give me some great feedback here.
I will do my best to follow your advices.

Losing is not normal. If you lose a game, take as long as you need so that you never ever lose a game in the same way every again. If you have lost two games in the same way - you are not playing chess as a chessplayer.

Losing is not normal. If you lose a game, take as long as you need so that you never ever lose a game in the same way every again. If you have lost two games in the same way - you are not playing chess as a chessplayer.
Disagree with the first sentence. Even Magnus loses. He just loses a lot less than everyone else. It is normal to lose occasionally. The other guy has a similar rating and is presumably trying to win too. If anything, some people get too upset by losing and then go on tilt and lose more. Keep the emotions in check and spend focused time on improvement.
My grandfather used to be a music teacher. Sometimes in my lessons he would say, "There are two ways to practice: the right way and the wrong way. Which did you do this week?" Well, if he asked the question it meant that I goofed around and played during my allotted practice time but I didn't really work at my studies with a methodical approach to improvement. It takes focused work to get better.
But at the same time, if you set the bar too high for a student of anything, they will get discouraged and fail to improve. Something that is the right advice for a 2500 is not the right advice for a 700.
listen...stop playing blitz and start 30 minute games.. think alot for each game. after 2-3000 games you will improve alot
No entiendoooooooo