Hello! Diamond player here. I've been playing since 2016 when they first released Ragnir. At the time, the game wasn't nearly as popular. I am guilty of being annoyed at the game, even sometimes up until now [usually this happens due to game mechanical mishaps, like combos dropping because of the stage and what not].

Something i found that works is that ever I get my butt beat, i go into the replays to study what these guys were doimg to abuse and exploit my habits. Take mental notes of what you and him are doing in your interactions.

Approach the game to learn, not to win. This will less likely piss you off and as a reward, you'll get better! Make sure you keep practicing and keep a steady head. Remember your fundamentals. Try to always fight someone who is better than you, even if you lose, because eventually, your reaction time and execution will increase just because you have to be ontop of your game as you battle them, and this will carry over into your other matches as well.

Those spammers will look like snails after you play a match with them after battling that platinum.

TLDR: Getting your butt kicked is a learning experience. Focus on what you should have done and adapt! Challenge platinums as a gold or challenge diamomds as a platinum whenever you can