I have no sex drive..what could cause this?

I’m seventeen and I have no sex drive whatsoever. I joke about sex and stuff, but I don’t care for or even want to have sex. I mean at seventeen..shouldn’t my hormones be going crazy? All of my friends are having sex non-stop and they have strong sex drives. I feel like something is wrong and I don’t know what it is. I’m bored with people, I’m bored with myself and now-a-days nothing is peaking my interest. Sex isn’t the only thing that seems boring and stupid to me. Is there something wrong?