I would say that's probably true. I myself grew up closing myself out mentally from my environment due to my frustrations with being unable to keep up with everyone else. That in turn led to me living in a fantasy world. A world where I am king and no one learns faster than me. Its been that way since I was about 10 years old, and I am still that way today, at age 48. I have never been treated for it, and cope with this as best I can. I was only diagnosed a few years ago because I went in complaining of being more forgetful than usual. The diagnosis of ADHD was clear, though I already knew that and it wasn't my immediate problem. Its that I have suffered from depression for years, and when I get bad, so does my memory.
So if I were ever asked to describe myself, you would hear whatever I happen to think of myself at the time. I don't have any particular way of seeing myself.