You're not alone, My ex-best friend used shooter games to frustrate me into entertainment for his friends over voice chat. Sometimes I would feel so much frustration I would hurt myself intentionally or accidentally. The frustration came from not knowing how to improve and so I was doomed to repeat the same mistakes over and over. Meanwhile I would fall for the same bait and switch tricks all while coaxed into being on voice chat when it happens so everyone I'm trying to be friends with can laugh at me. Despite being decent at the shooter genre I no longer participate in anything player vs player and avoid it as much as possible. You can probably imagine how difficult this is in today's games.

I don't know how to help 100% because the "fix" seems to change daily for me at least. But most times when I'm feeling explosive and volatile, depending on the availability I will:

• Take an hour walk
• Read one of my books
• Take care of a bodily need
• Use my explosive energy to get a burst head-start on a chore that's been on my mind
• Let the frustration pass to sadness while wrapped up in a blanket somewhere isolated
• Do something nice for a loved one and vent if they have time.
• Construct something fun for your pet even if it's out of cardboard.

I know it can be therapeutic to bite but you have to consider your teeth and jaw. If you absolutely need to bite there are things designed special for this.