What are good ways for someone who hasn't played in a while and is really low ELO?

I've struggled at this game a lot, so I took a break for a while. Now that I've come back, I feel like I've done even worse. Pretty much nothing has helped the entire time I played chess before I took a break, and I feel like I won't be able to improve unless I get coaching or practice matches.

Play as many puzzles as you possible can to shake off the rust.

Watch and study higher-rated games in depth with notations.

Develop an opening repertoire and practical endgame studies.

Hello! I think wizzardA1 gives good general advice.

I took a look at some of your games. In the past 2 months you've only played games against bots and people WAY higher rated than you. Even if I look back further, so many of your games are against players 1000+ elo while you're 500. I'd get back to playing more opponents your same rating level. And reviewing all of your games afterwards. I don't know if you are doing this already, but if not, reviewing games and seeing what didn't go so well for you and committing it to memory can really help.

The games I did look at, I'd suggest slowing down. Many of your games are 10/10 rapid and you finish the game with 5+ minutes on the clock. So managing your time more is something you may want to concentrate on. Going along with the theme of time - each turn before you move, check for hanging pieces. I noticed in quite a few games that you are missing opportunities to capture free pieces that your opponents are hanging.

Good luck!

Learn and apply the most important principles of chess. - (core of my teaching)
Always blunder-check your moves.
Solve tactics in the right way.
Analyze your games.
Study games of strong players.
Learn how to be more psychologically resilient.
Work on your time management skills.
Get a coach if you can.