Quitting at the right time

Sometimes we loose the focus and we keep working on the same stuff, over and over again.
Don’t go ahead with it just because you spent too much time working it out.
This kind of attitude is what status quo likes, settle with whatever. That’s what average people does. But… you’re not in the average. You’re smart enough to recognize these situations and focus again, leaving the ego at home.
It doesn’t matter how many hours you spent with that work. Just, be realistic, do not conform with whatever and challenge the status quo.