Seriously!

Why do I take everything so personally? I seem to take everything that everyone does as a hit against me, then I go sit in a corner and cry (really it's laying on my bed and crying). I didn't get a job I applied, therefore I'm a failure. I didn't get invited to go out with friends, therefore they hate me. A boy I have a crush on doesn't like me back, therefore I'm unlovable. Guys in general seem to not find me attractive (at least no one pursues me), therefore I'm dually unlovable. Why is it so hard for me to accept things the way they are and not take them so personally against myself? Isn't it enough that I am a child of God and that He loves and accepts for just the way I am?