Sorry, I don't agree with the idea that it's somewhat acceptable to punch a girl. Punching anybody is unacceptable if for no other reason than the fact that what we do to others
we also do to ourselves.

You really need some help with understanding what causes you to have such anger that
you will physically attack someone. We just do don't that in civilized society. There
are more effective ways of getting anger out, and you could help your feeling tone
very much if you were shown how to do that.

Please see a psychiatrist and get some instruction on how to manage your anger. Even a little medication might be called for to help you while you adjust to a new way of
anger management.