An odd but frequent barrier to prosperity is the belief that we're the "wrong type" to live an abundant life. This comes down to a whole attitude about ourselves which places us as a "misfit". This is quite usual among those who are on a Spiritual Path. I had this barrier at one time, and have discovered that it's completely irrelevant.
Eccentric millionares are wonderful examples of personal uniqueness being no barrier to prosperity. There are stories of the "wildcat" oilmen earlier this century in Texas who were the ultimate nonconformists. They made a mint! Unfortunately, one can encounter on the way up those who would want you to feel minimized by your uniqueness. These are rarely the ones with any true power (although they would dearly love for you to believe that they did). Depending on my mood, I treat them with compassion for their envy or simply ignore them.
You are here to express your individuality. If you read the history of the truly wealthy, you will see that they had this in common; they believed in their vision whether others did or not. Rarely do you hear of the success story where the prosperous individual worked 9 to 5, obeyed all the rules, dressed in the "conformity uniform" and always followed the party line.
If you don't want to be rich, but simply be "comfortable", that can set you apart as well. Some of the non-conformists of my aquaintance are exceptionally talented in areas they have no real interest in. I've been told I'd be a wonderful and wealthy salesperson (yuck!). It's vitally important that you understand yourself and your own needs, and then refuse to budge. Whatever you know that you truly want, that's what you are supposed to have.