The most important rule of PvP is ‘block’. My block list is exceptionally long over the years. You’re going to lose. Read that again. You’re going to lose sometimes. Sometimes you’ll get onto a bad streak as well. You will lose. Learn to lose. Learn to learn from a loss and get better from it. Accept personal responsibility for the loss and work harder. Do not enter chat. Do not engage toxicity. Block, study your loss, and get into the next bout.
Good luck and have fun!