This is a really cool thread. There are a lot of things I could reply to, but it will take forever so I will start with a few.
My dream age varies. Often I am a teenager. But other times I am my current age.
Other times, I seem to feel confused in dreams as to exactly how old I am. I remember a dream where I was kissing a teenage guy because I thought I was a teenager myself. Then I started feeling like something was not quite right, until I finally thought, "Whoa, I'm too old for him! How could I have forgotten how old I am??" :confused: That was before I learned about lucidity. Hopefully now something like that would make me become lucid.
I'm not quite the "older crowd", but I feel "older" on this board. The age I feel like when I'm awake is probably early-mid twenties. In reality I'm over 30.
And for the question on time feeling like it is speeding up---that is soooo true. Pj had an interesting explanation. I had never thought about it like that before.
And the question about going back and giving my teen self advice. I would mostly just pat myself on the back and say, "Keep up the good work. It's going to all pay off." I was actually a very nice teenager. I had great parents who were great examples to me and taught me well. Sometimes people would tease me for being too "goody-goody", but most of them later told me that they really respected me for it. So I'm glad I never gave into peer pressure. There seemed to be quite a few people who seemed to make it their goal to get me do something against my morals (swearing, drinking, sex, etc).
I also agree with the advice others gave about not worrying about trying to impress other kids in high school, because it just really doesn't matter. Most will be forgotten the moment you graduate. But those special friends who love you no matter what--hang on to them. They are the ones that matter. The true friends are the ones you don't have too impress. I have two very special high school friends that I have kept in touch with. And I'm so thankful for their friendship.
I'll probably add more to this later.....