I want to someday be Famous? But then again I DONT!?

Throughout my life I have been in many awkward, socially shameful and embarrassing situations which I find hard to escape. The memories of these incidents seem to ruminate in my mind and a defence mechanism I seem to have incorporated is fantasizing about some day being famous. Different memories seem to evoke different responses in terms of fantasy. Another example is when people laughed at me for being chubby - Even if i'm not that fat - and then it leads to the fantasy of someday being a supermodel. How can I break this cycle and come to terms with the fact that I will NEVER be famous and well known, and also - How do I completely remove the innate need of being famous from me completely?? Any body have any tips or some advice? E.g. The time I did really poorly on an exam and was the only person to fail it - I often fantasize about some day being a successful well known lawyer or such.