I am sure that you can improve. The only question is what are you prepared to do. First of all - speed chess will have to go if you wish to improve. You need to play longer games, at least 15|10.
I've written an article so I don't have to type all the tips I have for you. In short, here are all the tips I have to offer:
https://www.chess.com/blog/nklristic/the-beginners-tale-first-steps-to-chess-improvement
Welcome and have fun improving your chess.
I SUCK

@stinkygiraffe is you want to improve you need to be prepared to change. 15|10 was suggested so you said you'd try 10. Think about it.

I might be the worst chess player to ever live. I've been on rating level 100 for 3 days. HELP
Analyze gamez


Playing against a computer is not a good way to improve. It is a poor substitute to playing humans. It is ok to play those games for fun, but it is not for anything more serious than that.

Absolutely go to longer games, You can't make progress playing blitz, you need to think about your moves. Also if an opponent makes a mistake and resigns, I like to go to analysis and play around with different moves to see what I should have done in different scenarios and how i'd finish the game.

Watch youtube videos on chess for beginners. Not sure your age but at rating 100 there is no shame in watching videos targeted at first year scholastic players.

I like doing daily games against humans. It gives you a lot of time to think through your move and really survey the whole board. (I am still terrible too, though, so take it with a grain of salt!) I've also found, as others suggested, that watching some instructional videos on YouTube can be helpful. I found it useful to learn an opening and a couple defenses that I can use so at least I can try to develop in the opening and get to the middle game (where I blunder my pieces and miss obvious mates). Also, if it helps, I'm 41, a lawyer, and by most metrics I think I would be judged reasonably intelligent and well-read. And I'm terrible at this, so don't worry about your rating. It just takes practice.
I might be the worst chess player to ever live. I've been on rating level 100 for 3 days. HELP