Okay I have sooo many questions about becoming licensed...

I am in GA and we can't have our home kitchens licensed here. I am not financially ready to actually rent somewhere right now but I am pretty sure I could rent..or use my church kitchen ( which just so happens to be an amazing place). Does anyone know what requirements would need to be met in order for me to utilize that space for baking? What do I need to do?....Where do I start? What about insurance? What kind do I get?.....How expensive is it?

If you read all this...God bless you