Welcome! I'm sure you're not the only young FTer but odds are, you're probably one of the youngest. Like you, I've been flying transpacific flights since I was a kid and flew from Boston to Tokyo on my own for the first time when I was 13. I was stuck in Chicago for 5 hours on that trip, which was exciting for a boy travelling alone.
I hope you continue to enjoy flying. I'd love to read about some of your experiences in the Trip Reports section, especially since I plan to visit Singapore and Kuala Lumpur for the first time this August.
Again, welcome to FlyerTalk!