Is it normal to decide what you are while 35 years young?

Retaining the bikie wannabe personality, and blending it nicely with the fancy one (with the pursuit of a motorbike pocket watch purchase), I'm deciding as quickly as I can, at least on October today, to stay the same as I am now for a lifetime: supercool and not always thinking about it, acting 35 and staying 35, and more effort to decide quicker and more thus effort to decide on consistency (being real), thus authentic. Keeping it real is an understatement, I'm being real, I retain all of the philosophies I learned and accepted for years unchanged, I like challenges (unchanged since I was a sensible 14-year-old teenager), and although some things are meant to be easy (they very often aren't), I like challenges. Despite that bubble in your head I don't do the easiest possible thing but the most complicated possible thing and live a complicated life (life in the detail of my clothes), also life that's hard to analyse so much that nobody "gets" me, they don't get it why I do this to be cool, only my mum understands (which is simple): because I'm young. It's as simple as that, but it gets deeper, I fear getting older than 35 and will never grow up to 36, 45 or even 50, life begins at 30. For your information I'm authentic in science, simply that it never changes and its theories, truths and facts never change, and the type of sciences used never change (for your information I believe in a lot off different sciences, this has never changed), my saying is "I decided who I am and now it's complete", if only that was true, and if only it was that simple that I don't have to learn a single thing, with irrationalism I had to relearn it and remember from the original paper online on the internet. But I'm putting my foot down: I'm normal, distinctive, fancy, bikie, and rock fan wannabe, scientist (and sceptical), relativist, and philosopher, even an artist, and all that, and nothing will alter, change, add, subtract, learn, remember or pursue past or anything like that, it's all staying the same for a whole lifetime this millisecond, now I say humbly that would be the norm, is it normal?