confused daughter

hey. i am fourteen years old and i never met my dad. him and my mom split right before she found out she was pregnant. they were young, in the military, and he wasnt ready for a kid so she has raised me by herself. i tried contacting him a few times. email, phone, regular letters. he ignored me. he sends child support and stuff but i know thats only cause he would get into legal trouble if he didnt. sometimes i think i want to meet him, but most of the time i am down right pissed off at him and i am tempted to hunt him down, say "hi i'm your daughter" and kick him right in the balls. so i dont know whether i am right to be mad at him. what do you think?