I keep seeing these types of articles and it's the same story over and over again, "one must work 20 hours a day 7 days a week in order to be successful with your startup." Is this always the case? I can't imagine it is. Surely there are people out there who ran their startup successfully on a part-time basis while working a full time job and enjoying quality family time.
I suggest you to read the "Founders at work" book and look for common patterns among the successful founders.
Personally, I found exactly one thing in common - determination to get something done. That's it.