I didn't say that "all" magicians are starving. I merely said that "most" are.
I do not believe it is true that marketing skill is more important than performing skill. In the short run, yes.
In the long run, no. Your marketing skill won't be worth a damn if you are no good.
I am pleased that you are so ambitious. However I warn you of the old adage that when you are young you are going to shake the world until the world shakes you.
You should be happy that I am being negative. It will discourage your competition.