I feel like i`m missing out on my high school experience?

I'm 15 in grade ten, going into grade 11 in september and i've never been to a high school party before. I have many acquaintances but i'm not that close with them, I only have a few close friends. The people that I hangout with aren't in the "popular" group, and i'm ok with that because I like to hangout with real people who aren't fake and stuck up. That is the main reason I haven't been to any parties before. I also haven't had a boyfriend or kissed a guy before, because I just haven't found anyone I like. I know this is all normal, and I don't need to have lots of friends or even a boyfriend at my age and should be worrying about grades ect. but I just feel like I must be missing out on just being a teenager and not worrying about anything and just doing crazy things. I have only been drunk twice in my life and it was the best feeling I have ever had! I didn't go crazy or anything but I hear about everyone else making out with guys and getting drunk on the weekends and I know it's slutty and immature but shouldn't everyone go through an "immature" faze while they're young and still can? My friends aren't really into that, and neither am I but lately I have been wanting to just have fun and let loose but since i'm not in that "popular" crowd I can't. I feel like by the time I get to university or college i'm going to go crazy and drink every weekend and have casual sex all the time (even though i'm totally against that) .