I've started businesses, bought a business and had an accounting background. Best advice I can give you is get a job, at a Pizza restaurant if you haven't already done so. You will be getting paid to learn what goes on. If it is well run you learn what to do, if it is poorly run you learn what not to do. If you happen to work at a place with ownership near retirement maybe you can get a buying opportunity. It is a total win for you in many ways.
You might find after a period of time that it isn't really what you want or you might be in love with the process.
Good luck!!