How can I improve?

Come on and join us in chessmood!!! https://chessmood.com/courses Here you can find everything to improve: opening, endgame courses, commented games, puzzles, very useful articles and much more!

Come on and join us in chessmood!!! https://chessmood.com/courses Here you can find everything to improve: opening, endgame courses, commented games, puzzles, very useful articles and much more!
Why should I spend money to join this website when I am already a member of chess.com? Chess.com already provides me with enough study and practice material to keep me busy.
No one in the world loves chess more than I do! I've been playing for years yet my game improves only bit by bit over a long period of time. Would someone out there go over some of my games and tell me how to improve?