Looking to start a business

If this is not the right sub for this please excuse me and direct me to the correct sub.

Anyhow, with the way prices are nowadays and since I’m looking to buy a home here soon, I’m considering getting into cutting grass on the side.

I used to work for a guy cutting grass as my first job so I understand the physical portion of it well. End enjoy the work thoroughly. But some things I would like to know… Would I need some kind of insurance to cut grass as a side job? If so what kind? Also, how do you go to figure the cost of a job? What do you charge? And of course, anything else you think I should know please tell me. Thanks all in advance.