I am in a similar situation, but attacked it from a different direction. We are almost ramen profitable, and built our company ( http://codiqa.com/ ) almost exclusively while working 9-5 jobs. We'd work 9-5 then come home and work four hours a night, sometimes more. We did that for several months before we launched in February of this year. I don't sacrifice personal time, and we are still growing. Granted, we are yo…
For the first two months we regularly put in at least 12 hours a day seven days a week. We progressed, but towards the end of it we were barely recognizable. The amount of stress it put on us, our family, and our friends was immense. I'd drag myself to a bar to see friends and I'd spend most of the time zoning out, thinking about what I needed to work on as soon as I was back at home.
We've since forced ourselves to adopt a more structured approach, and factored in time to go fishing, play snooker, sing karaoke, or just relax. We're still working like crazy, but with a little bit of balance it no longer feels like the drudgery it had become before.