Yeah, i just named politics but other things too. I try to talk about everything but let's just say people or should I say teenagers in my school don't seem to be interested in those things. Neither do I actually.
What are they (and you) interested in?
I know how it feels to be awkward around people, especially when you're young.
Eons ago when I was a teen I remember listening to others talk and not at all being interested in what was going on. It made me feel there was something wrong with me.
There wasn't anything wrong, my mind was just moving ahead to the future, and wasn't much interested in typical teen banter.
I wish I had realized then that those few teen years swiftly move into the past, and soon you'll have farther horizons, and will find like minded people.
Now, although I'm an introvert (not shy), I can flare up a conversation with anyone. The trick is let them do most of the talking, and they'll think you're a brilliant conversationalist.
Could be be that you feel you need to keep talking, filling in the gaps that are making your feel awkward?
Learn to appreciate the silences. You don't always have to be the one to fill it.