I need help guys,

I'm currently 17 years old and still haven't even had a gf before or made out with a girl. I'm above average looking if I were to say and I know it's not the problem.

What are the things I should change in my life to help me accustom to this? I'm not very socially anxious and can approach girls, I just can't stay commuted to girls/make them want to do things.

Thanks!