Dads???MY DAD!NEED HELP?

Just choosing to forgive him is a good step in the right direction. you should give him another chance, everyone deserves a second, third and fourth chance, Take the time to get to know him, and when you are comfortable with it, talk to him and tell him how you feel, that way hopefully you'll also be able to forget. You only have one dad, try and make the most of it. Good luck