I'm freakin trash at chess..
where do you think your worst at? do you protect your king and develop before making threats, chances are you make bad opening decisions, you just need to pay close attention and play more games. Watch a master narrate a game, and use analysis to study your first mistake because it usually goes downhill from there
This study plan got me to like 1500 https://www.chess.com/article/view/study-plan-directory. In my opinion I think it can get someone to like 2000+
Improving at chess is usually not easy. If you can afford few lessons, I would advise getting a coach. I can teach you how to think during the chess game. After that, your progress is inevitable.
If you can't afford any lessons, here is the excerpt from very good article on how to improve:
Play a lot, analyze your games, and primarily study tactics. Your knowledge of openings, endgame, middlegame, etc. will come from analyzing your games and going over grandmaster games. Only study one of those specific topics if it is clear you are specifically losing because of that topic.
Source: https://www.gautamnarula.com/how-to-get-good-at-chess-fast/
Good luck either way!