Hello DarkMage03
There are a LOT of ways to get better in chess, and chess.com give you a lot of different ways to become better. One simple way is just to play lots of games on live chess or online chess. You can even play some tournaments to try to get better. Another way is to go to the "learn" option. In here, you can train your tactics, watch videos, chess mentor, etc. I find if you have a membership, you will get better faster. This is because you get more of these learning options. However, buying membership is optional
I am just starting off playing chess