Honestly, the best way to get better at games is to keep playing them and to watch other people play them. My boyfriend watches a lot of speedruns and tournaments on youtube and one time he showed me clips of a smash brothers competition and it actually helped me figure out some things I didn't even know I could do before. So just keep practicing and if you can play with other people that are better than you, do it, and if you can't, see if you can find a youtube video.