How to deal with tilt?

I've rewritten this three times cause I keep getting off track.

I've been practicing to get better, but sitting in the training room doing the same true combos over and over again isn't helping much. So I hop into ranked, but I feel myself losing my mental every three or so matches.

Should I do practice mode for like 5 minutes in-between games so I reset doing bad habits/going hyper aggressive?

Once I get tilted, should I just close the game and uninstall before I lose my mind? /hj

I will read any constructive criticism and do my best to reply.

I'm a 1750 Lord Vraxx player.