Well man, you've asked a pretty deep question. So, I'll help provide you with a thoughtful answer cuz i think that's what you're looking for. I'm 24, and age is something i have thought about for a while. Honestly, thinking about how old you are, what it means to be a certain age, why can you do certain things at one age and not another... they're questions we all ask at one point or another. Thinking about such things is natural, there is no real answer. the closest i can come is to say that age is what you think it is, it's much like a self-fulfilling prophecy. if, at age 25, you already feel burnt out--well, then you'll only go downhill the rest of your life. Think young, be young. that's it. Personally though i worry about myself too. I mean, im 24 but WTF am i doing? these are my prime years and i'm... lazy, high, procrastinator, don't have a job... on the bright side i'm going to be an English teacher, i'm about a year away from getting my credential, but still, i don't do shit. is it normal? am i just bad and lazy, or do i really have yet to live? have i not done anything because i haven't yet lived long enough to really "live?" it's just all part of growing up, we are all different and it's because we are all in different situations. The fact that you are aware of such things and are wondering about it--while it may seem strange--is actually a sign of maturity in itself. trust me, "growing up," in the sense of mentality, is not something you really "notice" unless you begin thinking about it like this and have enough wisdom to step back and look at yourself objectively--and honestly.