Help with research

Hello teenagers! I require your help with an assignment. I'm doing a presentation about development in adolescents (11 to 19) and I'm doing research about questions that might arise in that age. My teenage years aren't that far away, but I realise trends change quickly and while I could just go through the Internet to find answers I rather get answers straight from the horses mouth so to speak.

So, what are (or you think are) most often asked questions about growing up?

I'll remove this post after 2 weeks unless the answers will be helpful to someone here.

Thanks!