I’m really bad at chess, any tips?

The usual advice.  Stop playing speed chess.

Don't memorize things. If something requires effort to memorize it is useless, maybe worse than useless. These aren't grandmaster opening theory duels here. 

I usually see the not playing speed chess as condescending and useless to people who are only interested in being competent at speed chess, but looking at your history you are playing bullet and 3/0 games and yes, don't do that. Try playing 10/0 for a while and do more puzzles. Anything faster than that is more twitch gaming then chess until you have a far better grasp of what is going on. 

Read these books end to end in this order.

1. Bobby Fischer teaches chess

2. Chess tactics for students by John Bain

3. Back to basic tactics by Dan Heisman 

4. Logical chess move by move - Irving Chernev

5. Dan hiesman's youtube channel is a must visit to learn strategy and thought process.

This helped me to improve from 600s to 1200 levels and please play on 30 minute or more game to give yourself time to check if you'r leaving piece un-guarded. 

And when you lose, don't cuss, just mouth a few Meowy meows.

Don't memorize openings, follow opening principles. Here are some general tips for you:

https://www.chess.com/blog/nklristic/the-beginners-tale-first-steps-to-chess-improvement

do you know how to castle?

You posted this 7 hours ago.  Of course you aren't going to remember everything.

Recognizing your opponents mistakes are the best thing to do if you're U800 rated, or ELO. The way to do that, is to practice a lot of puzzles. Study positions from other games, and review your own games to see if you've missed anything.

Play slow time limits and use all your time. Before every move, look at the following:

1. What is my opponent threatening and how do I deal with it?

2. Have I got any opportunities to win material or attack?

3. How can I improve the position of my pieces?

Then, before moving, look all round the board once more to make sure you haven't missed anything. This simple policy will make your rating improve in leaps and bounds, and that will give you the confidence to improve.

Get a real board. Sit across from someone, and move your pieces while talking out loud. Talk out loud about 3, then 4, then 5 moves ahead, and why it makes sense or why it is a blunder. Point out the threats, talk about every piece, how it moves and where it can go.  Target a square, then speak about how to own it. This will force you to make strategies and evaluate tactics.  Practice the end game with the minimum of pieces and figure out how to checkmate.  Practice it.  Then play a real game, make your mistakes, then try again.  Remember, when the 2 best players in the world play, someone loses.    Just....play.   With youtube, beginners have an advantage that they no longer have to learn out of a book or to figure it out on their own.

agree with @KingAgo81. it really helps to play with a real board.

I would completely agree with that and add even more about what your piece was doing there in the first time. If you put a knight somewhere, maybe that's for challenging the opponents piece or move at some point. Or maybe that's because it defends another piece or a pawn. And try to imagine what the other has in mind or what he's trying to threaten. Of course I guess by now you've been mated with the scholars' mate, which means when you see a queen and a knight/bishop early in the game aiming at your f2 pawn, you know what he's trying and you can try and counter it. Well then you can try doing that with any move. Sometimes people will play something just to make you lose time or displace a pawn and you have to be aware of the consequences of a play.

Then, a very trivial advice: try not have your queen or king in front of another piece, even when there's something in front. For example, don't put a queen in front of a king because a queen in diagonal to the king can be a gift to a defended bishop. Similarly, a king that can be aimed at is certainly going to, which is why one castle as it defends the king with pawns and the rooks together.

And of course, when it gets too complicated or dangerous, just trade for something of similar value.

Anyway, make mistakes, we all do. The best way to improve is experience. Today you can even use computer analysis like stockfish that tells the best solutions and moves to review mistakes you did in your game

dont ask me, i dropped my rating from 1200 to 600 to 500 now im getting back at 900 but then i tilted to 700 

I've been playing for about a month. I never played chess as a kid... Now I'm old trying to learn. I mostly play vs computer. I don't have time to play longer games. I can beat some of the higher rated bots lol but my score keeps going down every time I play a real person. I have been doing the lessons. I usually analyze my games through chessCom .I don't plan on downloading anything... I always wanted to learn. Never did. Now I just want to learn enough to try to get my 4 yr old interested.