This may not be what you want to hear, but you should nevertheless consider that perhaps running your own business isn't for you. Other respondents here have pointed out the vast amount of work that goes into starting up something new. It's really, really difficult. If this were an easy thing to do, absolutely everyone would be doing it, because who wouldn't want to be their own boss?

Don't take this as criticism of you. On the contrary, this may be the opportunity you need to leverage your true strengths instead of attempting repeatedly to embark on a gambit that seems to be a poor fit for your personality.