As far as stopping me I would say nothing but me! I have a tendency to talk myself out of things. Right now though I am more tired of being on someone else's payroll than I am scared to try. I have an MBA and am making $10 per hour just to have a job. I work as a manager for McD. I have never worked so hard in my life for so little. If I'm going to work this hard then I want it to be for me and MY family.
You know, you really hit on a great topic here.
I have more friends who either didn't finish high school or just barely got through that now run their own businesses than the friends who got their M.B.A.'s. When you think about it, it's insane that's the way it goes.
But I think it comes down to this. Those that didn't get through school are more impulsive. They get an idea now and they want to do it NOW. It's like ADHD. They want to do NOW NOW NOW.
My college graduate friends and MBA's want to think and contemplate first. Then create a plan. Then study it's feasibility. Then once they do that, they want to compare the plan to another plan and see which plan is more viable. And on and on it goes.
From my experience, the ones who act faster and throw their ideas up against the wall to see which ones stick tend to find a lot more business success than those who spend their time contemplating.
Why am I telling you this? So you can benefit from it.
Why are you talking yourself out of things? How did you develop that trait? Do you like it or do you dislike it?
What can you or will you do about it?
Realize you are not alone in this and realize you can make a change.