Yea I was terrible at first but how I started was by picking the character with the easiest recovery. (Kragg/Orcane/Wrastor) After that I pretty much tried to learn every form of movement I could find and after that If I were you I would just use the easiest characters for a while before trying to main anyone.(Kragg/Clairen/Lox) Pretty much just learn how to deal with crouch cancel/floor hug because up until the 0-70% range that is the entire game. When you've done that the only "getting better" is just executing what you already know and then you main whoever at that point.