Steps from A to Z after you are incorporated

Hello Guys

I searched this forum but i think best to ask this way.

After you have incorporated LLC OR S CORP what are steps to be completely independent owner operator. I know company who has insurance on its name and once you are owner operator of a car hauler they offer you loads but you are not independent fully. I want to know what it takes to have your own insurance your own accounts on websites, you dispatch yourself. Do you need minimum experience on central dispatch or 1dispatch websites to be eligible to haul cars?

What is process of getting DOt and MC i found agents are offering this service for certain fee but i think process seems straightforward why to pay extra fee?