It takes a lot of hard work and time to build a business that is truly profitable. It sounds like you have the dedication for the time needed and, are a dedicated worker too. So, you are covered there and trying to accomplish the goal of a successful business isn't going to shock you on the terms needed to do so.
The biggest thing I think that is going to surprise you being self employed is the lack of quality help. It just isn't out there. Because those people are working just like you are now, for another company. Being a small business, you can pay what the work demands in compensation but, you will not be able to offer them insurance. Which means that most qualified applicants are going to go else where. All is not lost though.
You can offer things in lieu though if you find that 1 in a million. Offer good pay for the services they provide. Subcontract them, pay them the taxes, while giving them the freedom to run their own business and capitalize on tax deductions. It gives them ownership in the health of the business, which gives them drive to see it succeed. Which also creates a partner invested in you as well. Work with them on time off. Never forget the reason you are looking to do this is the same reason they would be willing to do it. FREEDOM to enjoy the fruits of their labor. But, you had better believe me that you are going to look long AND hard for the people to do this with
I've been self employed for the last 6 years. 5 of those years was finishing up a 21 year career as a forester. I walked away from that last February to do landscaping and construction. I spent a ridiculous amount of money buying commercial mowers and gear needed for two landscaping crews. To only fight tooth and nail to get people to run it in a professional manner. While offering them both 30 percent of the take. My gas, my equipment, my trucks, my trailers, me getting the jobs for them, me collecting the pay, me doing it all. At the same time I was studying to acquire my commercial and residential construction license. My idea was to give these crews a good living with incentive for a great one if they wanted to give the effort. Mind you, I'm there sweating right along with them too. So, it wasn't a lack of effort on my part while they slaved away. However, what I quickly realized is that unless congress revamps the immigration process to expedite immigrant workers, I'm going to spend the next 20 years spinning my wheels doing this too. Because Americans can stay at home and lay on their butt and make it versus starve for being lazy.
I told you all this in order to get you to see that it isn't all roses. That is takes a miracle blessing to get the stars in line for a small business to truly succeed to the point the owner benefits with the freedom to enjoy the fruits of his labor. So, unless you know people that will invest in this venture with you, be content to stay small and do only what you can do alone. If not, the freedom you seek will not materialize.