I would do some real soul searching and be honest with myself first of all....
So what would make you different from all the rest???
I hope your answer is your customer service... second to none.....
What would be your niche??....You need to identify what your market needs are and how you would address and support them...
Again your customer service.....second to none....
I hope you see where I am going with this....You ,You and You will need to be there full time to establish your business goals and make sure they are carried out....It is not an easy task treating people the way you would like to be treated when relying on employees, you will need to be there full time to instill your vision....
There is a huge difference from doing something you enjoy and turning it into a business. I know because I did it for 26 years and enjoyed every minute of it......Just some food for thought.