https://www.chess.com/blog/TheMonkPlayingChess/the-first-step This can help , many player have crossed 1000 elo using this . so you can try this .
do comment if you see improvement , i would be happy to know .
also if needed any other tips let me know .
Learn exactly how to think in the opening, middlegame and endgame — this is what I teach.
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.
Most important thing is just to have fun and enjoy the game 
I looked through a couple of your games, and you seem to move a lot of Pawns in the opening - try to get Knights and Bishops developed first. And learn about Hanging Pieces and making sure your pawns etc are defended - you leave a lot of things for opponents to gobble up. But just keep playing and you'll get better. Learning about forks and pins is very important too (lots of Youtube videos for these things) - don't move a Knight if it means you will lose a Queen!
a hard stuck 100 that needs help