I'm not a teen but thought I'd reply anyway 🙂
i think talking to other people with diabetes is great. I work with 2 other type 1's which is cool, one of them can just tell when I'm low. My brother and my mum both have diabetes, my partners mum and dad are both type 2's, so i'm pretty much surrounded by diabetes!
childrenwithdiabetes.com has a good forum and a specific teen section which has quite alot of people posting regulary.