Any advice on improvement in my games on chess.com

It would take a long time to go through your games. People can't just magically run through them and come up with tips.
There are good lessons here for beginners. You should use them.

Here are some general tips you might find useful:
https://www.chess.com/blog/nklristic/the-beginners-tale-first-steps-to-chess-improvement
Good luck.