Ever since I was about 13, I would finish a book and not be completely satisfied with the ending. I would find myself sitting up late at night pretending I was that character, and making up an "extension" to what I'd read. Not like dressing up like them, it was all in my mind. I would make up new scenarios and turn situations like my persona was doing them instead of myself. I still do it. But I'm 19 now, and I am a little busier, but I still pretend when I'm at work, or lying in bed. I have a few different people, but I stick to one, usually. Am I abnormal?