Why am I such a jerk?

I hate how I act nowadays. Every little thing bothers me, and everyone pisses me off. If I get something like a little scratch or something, or if someone looks at me the wrong way, I totally get so mad. I'm worried about being as perfect as possible because of how messed up I think I am now. The other day I was hanging out with 2 of my friends and My dad sorta annoyed me, and they were talking about having sex with their boyfriends and I got so annoyed probably because I haven't had that experience (not that I really wan't to because of my flaws) and because it just annoyed me hearing them talk about stuff I don't want to hear about, so then when we were going to my house in the car, there was a song on the radio and my friend heard it and was like I like this song, and I turned it off.. and I'm sick of being so miserable and irritable because I worry so much about how I look. I really hope this made some kind of sense.

PISSIN you OFF. lmao. nice.. :]