The word I would use is "adolescent".
At 17, you are still developing your identity. If you don't have desire for sex, so what? Do what is meaningful for you. Friendships are great.
We are all much different at 23 then we are at 17. Your feelings about sex may change. They may not. If they don't you will learn to accept them. In any event it is all fine as long as you learn to accept yourself.
But when you are 17, you aren't supposed to have it all figured out. Enjoy the relationships that are meaningful to you now however they turn out and don't worry..