My friends told me to hit the gym. But I am afraid that If I got the muscles I might indulge in fights. What is your advice?

I am an introvert nerd with anger issues. I have seen some body builders often indulge in fights. What if I became a angry muscular man?

My friends told me to hit the gym. But I am afraid that If I got the muscles I might indulge in fights. What is your advice?
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