1. Don't blunder
2. Make sure you either make good trades or win pieces (giving up a knight to take a pawn is not a good trade).
3. Don't leave pieces hanging.
4. Learn common end games such as pawn, rook, rook and pawn, 2 rooks, queen etc.
5. Don't get yourself forked, skewered or pinned in the end game.
6. Learn pawn promotion patterns both how to win a game and to create a draw position
7. Read #1 again.
Stop blundering, when you think of a move ask yourself 1 is the square the piece will move to allow it to be captures and if so, will I lose material? 2was that piece doing an important job like defending other pieces or blocking an attack. Also do lots of puzzles and look for tactics for you and your opponent
Whenever you are about to move, think about what your opponent is gonna do next. Thinking about what your opponent wants by doing a move can help you spot your opponent's plan and stop it. Try to see if the piece the just moved left anything hanging, like a free piece or even a checkmate. Don't blunder, too. I know it sounds obvious, but sometimes you think you did a great move when you really just gave away a piece. Check if the piece you are moving leaves another piece hanging. Do some tactics puzzles for pattern recognition, because everyone will once in a while make a bad mistake.
I'm in the 800s and when I don't 1) blunder, 2) have failed exchanges, or 3) have failed attacks - I usually win more than I lose. But the #1 focus has to be not to Blunder 
Tactics, tactics, tactics, Greco’s games, basic opening principles, and tactics.
Study all of these games, you will get better. https://www.chess.com/games/gioachino-greco
Solve all the problems in the first book of this series, you will get better.
The way I got out of 800 was by doing C.T.C (checks, threats, captures). That helps conceptulize the position and your best chances.
If you see this comment you are cursed unless you post this on 3 other forums (don’t blame me I didn’t start it)
yeah i have been stuck below 800 too but I just don't blunder and people just crash out when they cant make progress, so might not be the best advice but try to keep the position locked or try to keep your opponent form making progress. They might also weaken a square in the process so immediately see if its safe and conquer the square, this will create pressure and they will try making threats but mostly they will be harmless. But still, you gotta analyze each move, that also tells that playing longer games is the best, I recommend 10min or 15min chess.
I would say something that really helps get out of 800 is first you should start learning opening theory better because its something most 800's dont have and then learn like all the chess basics mastered you have to take it step by step if you just start from saying "oh im not gonna blunder" You'll be surprisied but thats what all 800's think and they dont gane rating you have to think about pins, forks, disco attacks, mating nets
If you are bored from learning, just go to youtube and go to topchess, ngl they actually make it fun
Btw no I am not trying to 'sponsor' this channel
Ok Thats true though I love love love topchess its hilarious and I watch them on daily basis
I need some tips to help me get out of 800. I suck at holding on to leads and finding them. Anything would help. 👍
I quickly took a look at a few of your games and noticed a few things, you play way too quickly in rapid games, a number of your moves are short sighted (you move one piece or a pawn and don't see how that effects the position causing blunders), your moves don't tend to indicate you consider what your opponent will do. All three points are related, if you don't spend time on your moves you will not see how each move affects the position or what your opponent will do. The fix I propose is to quit playing bullet for a while and greatly reduce the amount of blitz you play. Play 10 minute games minimum if you can play longer even better. This additional time means nothing if it is not used, so what are we using it for? We use it to think of course! Here is a general thought process to follow before making a move: if I make this move how does the position change (consider this change in position for your opponents moves as well), what about this move is good or bad, what is my opponent trying to do, how will my opponent respond. My final word of advise is to look at all of your options when calculating, a common mistake is to calculate a few moves for a single possible variation instead of looking at the different options both one and their opponent has. This should help you hold those winning positions you have mentioned letting go of.
I need some tips to help me get out of 800. I suck at holding on to leads and finding them. Anything would help. 👍
I quickly took a look at a few of your games and noticed a few things, you play way too quickly in rapid games, a number of your moves are short sited (you move one piece or a pawn and don't see how that effects the position causing blunders), your moves don't tend to indicate you consider what your opponent will do. All three points are related, if you don't spend time on your moves you will not see how each move affects the position or what your opponent will do. The fix I propose is to quit playing bullet for a while and greatly reduce the amount of blitz you play. Play 10 minute games minimum if you can play longer even better. This additional time means nothing if it is not used, so what are we using it for? We use it to think of course! Here is a general thought process to follow before making a move: if I make this move how does the position change, what about this move is good or bad, what is my opponent trying to do, how will my opponent respond. My final word of advise is to look at all of your options when calculating, a common mistake is to calculate a few moves for a single possible variation instead of looking at the different options both one and their opponent has. This should help you hold those winning positions you have mentioned letting go of.
This was very helpful. I'll play lots of rapid games now. Thank you very much!
play players stronger than you. lose. a lot. try to learn something from each loss. repeat. stop following your rating too closely, it will go up with added experience.
slower time controls are almost always better for learning than short games.
bullet is useless at your level for overall chess improvement unless you want to reinforce bad habits.
I need some tips to help me get out of 800. I suck at holding on to leads and finding them. Anything would help. 👍