Been in business for myself for two years now. I own a technology repair and consulting business.
My best advice to you is that if you are doing it because of the money, you will fail. You need to set it up around something that you genuinely enjoy doing and won’t mind working 12-14 hours a day, 7 days a week, and bringing home less than min. wage in the beginning.
My first year was seriously insane. I worked an avg of 80 hours a week and brought home less than I would make working 40 hours a week for min wage. Things have improved a lot since then. But as the business grows its roots, technology is extremely lucrative.
My second best advice to you, is NEVER EVER partner up. I started out as a partnership and didn’t listen to anyone who said anything negative about having a partnership. Trust me, I should have listened. I am now a sole proprietor and will never make that mistake again.