You don't think that.
I say that, based on the fact that you're posting on a bulletin board. Anyone with a true Solipsist ideal would reject this, for if existence is simply a creation of your mind, there'd be no reason to tell anyone, because there'd be no one to tell.
You'd simply be repeating it over and over to yourself.
What you have, if you have anything at all, is a large ego.
You don't doubt the existence of other minds, but you do think that you are superior to these other minds. It's a God complex, not a singularity.
Also, if you reply to this as, "I knew you'd say that," then not only do you prove my point, but I will retaliate by overwhelming this topic with gay porn.