Congratulations on your new endeavor.
There is money to be made as a contractor.
However, it is a difficult if not impossible field. You must be able to embrace chaos. It will be like that every day if you are successful. The business is not about what you think it is. You will see as you really dig in. You will be held accountable for situations that are beyond your control and frankly you never could have known about. On the upside, there is more work than you can get to.
Just to name a few challenges:
1. Labor / Subs Will they show up? What will they do while they are onsite, work, smoke, talk on the phone?
2. Supply availability and cost
3. Pricing. If you discover something that is not part of your scope of work, will you eat the cost? Will the customer pay the difference?
4. Getting ripped off. Materials being taken from job site, subs not showing or doing a good job, customers refusing to pay.
I am not disouraging you from doing this, just offering a few thoughts to keep in miind as you start your journey.