Bro honestly most people start a business in whatever field they’re already working… but instead of doing it for the company they’re working for, they just start doing it for themselves. As you can see, most people have told you they already had experience in that industry and just decided to venture on their own. They weren’t laying down in their bed and a new idea just popped in their head. So get a job in an industry you’re interested in, pay attention on what the company you work for sells and who they sell it to. Then learn to provide those same services/products and one day start doing it on your own…