Play faster and memorize openings.
how to get better at blitz
When ur rly low on time, and you don't have any winning attack, you should trade pieces. that way, you can play quicker and you won't get flagged as easily, for example, it is a lot easier to play a opposite colored bishop endgame than a middlegame with rooks, knights, and queens.

I'm great at rapid and bullet but blitz is this weird mix between the time controls and I have a losing record in it.

When you're losing the game, open a hundred browser tabs which creates a transferable lag which may disconnect your opponent.

"Just get good"
-Sun Tzu
This seems to be ridiculous, but it's true. I don't know if you play on other sites or otb, but here you only play with fast time controls. Play with longer time controls, learn to analyze and calculate, and your chess skills will improve greatly. Greater skills and knowledge will yield better results.
Anyway, there exists no magical way to get better, it just comes down to identifying your weaknesses via thorough analysis and then rigorously working to better yourself in those areas.

Anyway, there exists no magical way to get better, it just comes down to identifying your weaknesses via thorough analysis and then rigorously working to better yourself in those areas.
If I’m being completely honest both of us were moving before thinking
I just happened to think more
i tilt too much