What's wrong with me?

I'm seventeen years old and I grew up with a crappy past, four step dads one a druggie/drunk, brothers dad was a pedophile and another verbally abused me for six years, I apologize alot when I feel As if I mess up and I get upset At the easiest things, like if someone makes a joke about me, I could cry, and I'm always trying to get a girlfriend because I believe that love will make me very happy, but now I feel lonely, love deprived and unloved, is this normal?