Do You Daydream, Think A Lot, and Live Inside Your Head?

I got this from another thread, it describes my situation perfectly. i did not write this.

I am 26 almost 27 everyone thinks I am 17–19. No girlfriend, dead end job, and living with my parents. I have so much potential and gifts but have wasted a lot of it. Mainly due to my anxiety and depression. I could have been in many relationships but due to my young looks and shyness, it is tough. Just want to know if other people experience this.

Anyone else have a very vivid imagination and rich internal life? It never translates to the outside though. Reading about things, thinking about a lot of things, playing scenes of lots of things in your mind (i.e. idealized version of your life) I live in my head so much that I don’t even know who I am really, what my ‘personality’ is. I guess loner would be it. In front of people, I become this quiet generic nonexistent person who says ‘yeah’ a lot and awkwardly laughs at things instead of speaking. And I continuously punch myself mentally because I can manage to go through an entire interaction with a person just saying ‘yeah’ and laughing it’s messed up.

Even when I’m around people (which I try to avoid), I’m still ‘in my head,’ so to speak, thinking about how I would rather have things be going, playing scenes of what I would like to happen, things I could / could have said that would have been oh so witty but I never do. I just think about it more later, about how I’m throwing my youth away being miserable and lonely.

What really screws me up is this image I what I think life should be like. Movies make everything seem so goddamn easy. People just talk. They just say whatever they’re thinking. It baffles me that some people don’t understand how difficult it is to do just that.