Bullet games
If you are not thinking or just premoving, it is hard to win. You should play moves fast, but put at least a little thought into them. Also, if you are trading pieces, you should premove a recapture for if your opponent captures your piece.
Hey there.
I am rated over 2400 online (https://www.chess.com/member/ppandachess). I created a free course that will teach you a training plan to improve. Feel free to check it out: https://www.panda-chess.com/daily-improvement-plan