I don't know the back story on what sort of business you are starting or why you are going that route but it sounds like you have done your "homework" well and having a mentor is a great idea.

I'm not experienced at owning my own business but I'm sure being anxious is part of the deal. But those of us who are anxious to begin with can take it to a new level :-) Keeping your supports in place as you proceed is important but I'm sure you already know that.

I failed miserably on a project I started yesterday, asked for help and with help, got it right after working on it all day. The real 'work', though, was not to beat myself up or get into the perfectionism thing. Even things you are experienced at get bumpy but new ventures are that way by their very nature.

I wish you success and hope this is a good experience for you.