Gotta love how people that dont actually qualify to respond to the topic decide to give thier 2cents anyway about how they 'feel' like a teenager... Its not the question..
To answer that, Yeah, actually, I did and do Aaron. Earlier on, (Transitioned at 19) I felt like a bystander, friends got into relationships, did things i couldnt, and I was left as a mere spectator. Happier... dont get me wrong, but i felt like i was missing something. In my earlier teens, I didn't date, i didn't go to all the partys at school... I was a sort of social pariah. I missed out there, but was too deep in depression to really realise it. I guess i miss the fact, but I don't lement it, I have my life now, and im pulling out of the teen nose dive, which for me, culminated in an attempted suicide, then transition sucessfully. All that matters is we actually progress... and living in the past can harm that. Remember it... but dont live it. Otherwise you neglect the present and the future, and thats where we can change things and be happy.