Idk what my sexuality is

I'm almost 13 (tomorrow's my birthday) and I'm confused. For a little while I thought maybe I was asexual because I've never found anyone attractive or had a crush. I can look at someone like Nick Jonas and say "yeah, I can see what could be attractive" but I don't personally think so if that makes sense. But I find myself looking at girls sometimes but I've never had a crush on one. Maybe I'm just scared of coming out or something. Help?