trust me, she'll forgive you eventually. Just apologize and tell her how much you love her and that you regret what you did, and then give her some time. Tip coming from a 16 year old with a 4 months daughter, ok? They get mad at us, but they always come around.
she might forgive you some other time
Let the situation cool off for at least a week, then sincerely apologize to her again.
It might just take time. If you let her know that you know what you did was stupid and immature and ask her for forgiveness, I would back off and give her time to think about it.
Can't make anyone do anything. She knows you are sorry, so be patient. One of my favourite quotes is "you can't talk your way out of something you acted yourself into"
just walk away and calm down if you feel yourself getting angry. Try putting yourself in other people's shoes.
Our hands are tied if you won't tells us what you did.
I don't know what to tell you.
Anger is a choice. If you can't afford it, don't do it!