A lot of successful entrepreneurs dropped out of school (Richard Branson) or university (Bill Gates).  But Ogilvy, who went on to become a famous ad man, at 38, had "no credentials, no clients, and $6000 in the bank" and a below average IQ of 96.

I watched a documentary on Ogilvy a few years ago, and when it got to the bit about his IQ score, it said that Ogilvy had tested his IQ at the end of his career, after he'd retired.  He was expecting to be a genius, but his results showed him to be below average.  He was disappointed for a few days.  But then he realised that he'd actually done quite well for himself to have done so well with such a low IQ.

So you don't think you're as smart as everyone else, you've scored low on an IQ test, you're broke, you don't have a job, and you don't have a great education.  So what?  Other people have been in that position before and created amazing things for the world.  And you can do so too.