You think you do not have what it takes to become rich
If you think that you lack what it takes to become rich, you will never, ever become rich. Remember, success begins with attitude.
One of the many perks of living in a capitalistic society is that no one can stop you from becoming rich if you are willing to create value for other people. If people find your offering, be it a product or a service, valuable, they will happily pay for it.