I lost my temper with my father and said some rude things I shouldnt have said when I was younger. 
Don't beat yourself up about it. I did the same with my mother all the time when I was in my early teens. We've all been there.
I know I try not to but once you get older you realize it wasnt the nicest or brightest thing! 
Oh I agree, I still feel awful about it myself! But I think our parents understand and don't take it to heart, because they usually did the same thing too :)