Unemployed...still

OK, I have moved back to my lovely house in Boulder City, NV and have submitted my resume to probably 30 different employers. Sure, I have only been here less than 2 weeks, but the lack of response to my very competitive resume is getting me into a downtrodden state. What if I can't get a job? I have ample education, but this may have made me less competitive because I am overqualified for lower income jobs and the lack of experience makes me underqualified for jobs requiring an MBA. I feel as if I have painted myself into a corner. So, now what? I need a plan, so here goes: I have a great idea for a business and I could spend my days writing a business plan, and turn it into a motive for finding investors and finding capital. Any knowledge I don't have I can hire, and the idea has merit for growth into a multi-billion dollar business. I am afraid most of the effort will be wasted if I cannot find the funding to start it up. But, it is good to practice, I suppose. I need motivation.