Different mom's in my area always ask me these questions. And I always give them the same advice. There are two things that you must ABSOLUTELY have:
1. Love for other peoples children........not like, LOVE.
2. Appreciation for a mess.......in your home, in your yard.....even in your hair.

If you have those two things everything else is just fluff that can and will be worked out over time.
I LOVE kids. I want to be around them my entire life. They bring joy to my everyday being. I worked in a centre and loved it there too. BUT at home there is no "lady drama" with all the other staff members. Child care is not rocket science...........an d you must spend your life doing what you love. If I won a million dollars I would still have a home daycare, but I would do it for free instead :-)