Is there something wrong with me?

I've had some bad things happen in my life. This has caused me to not like being touched. I'm not very sexual at all. But i have my moments where i like physical stuff. I've never had sex, and i feel it's won't because of the way i am. My mom says it's one of the best parts of being in a relationship. I feel like I'm not normal and i hate it. So i guess what I'm asking is if I'll grow out of this? Or will i always dread being with someone because I'm scared to be touched? (I'm not good with explaining and I'm sorry)