Not to be a Donny Downer but everyone I ever knew who has "ideas" is broke as shit. These days you have to really know a field to have an idea worth anything. A business is about execution, not the idea. Unless you have the capital, the contacts, and the experience, you are just gambling.
Further, almost everything in the business world is counter-intuitive, I.e. not what you'd expect. Even ideas that seem air tight tend to not work for one reason or another.
IMHO? Go work in the accounts receivable department of a midsize business you admire. Learn everything there is to know about the business, its industry and its market. Then have the ideas.
lol at Donny Downer. I know it's hard out there. The simple truth of being your own boss is that you have two jobs- running your business & then not allowing it to fail. Two full time jobs, much harder than just waiting on paychecks.