You won’t know if you can fly unless you decide to jump.
That being said, Jamie pretty much nailed it with his comments. Every small business is different. The amount of time and effort that makes a comfortable living for one business doesn’t necessarily apply to another business. Only YOU can quantify that and decide what to do or how much to work.
Constant calls and interest is great. It’s a good start. But running your own business isn’t all roses all the time. Bidding jobs, answering calls/emails, taxes, redoing jobs, dealing with difficult customers, unexpected delays/losses, taxes, people who ghost you, people who don’t pay on time, or pay at all, sleepless nights, more fuggin taxes.... These are things you need to seriously consider before you decide what to do. Also decide how successful you want to be. People go through the motions all the time and do “okay” running their own business. And if that’s your goal, that’s 100% okay. The people I know that absolutely kill it running their business are people with extreme ambition and tenacity, always brainstorming how and coming up with ways to be more marketable and efficient.
My suggestion to you, if you want to go for it... Ease into it. Figure out your system. Get GOOD at what you do before your go balls to the wall. If you’re already good, get BETTER. The last thing you want to do while starting out is get overwhelmed and deliver a disappointing product to your customer(s). Word of mouth is an incredibly powerful tool. It can make or break you.