Yes sleeping 8 hours a night is overrated…. But yes.
But some people only learn how to swim when thrown in the water.
I started like it, a few years back with that same idea ….keep working full time and getting my business started at night and also on week-end. After a few days my former boss heard about it. knowing I was going to be competition, he fired me on the spot…. He told me to clean my office and leave. I had two young kids and debts… I had to explain my wife, who was full time mom, and me the only provider, the day I had and the situation we were in.
Anyways the following day I started hustling full time to get it running asap. And working 70 hours a week. In retrospect getting fired was the best thing that could happen to me.
I had to learn swimming much faster, with no safety net.
Obviously you cie still have some potential to grow and you are not the only one to see it……
The real question is : does it still make you proud and happy to operate it? If the answer is yes then it is a no brainer …. Just keep it and reassess in a few years.
If the answer is no then…. Still a no brainer just different decision to make.