I don't think there's anything wrong with the occasional late night session. Or even pulling an all nighter every once in a while. If I had a chance to redo my choices then I'd keep a lot of those sessions. Nothing compares to the feeling of zen I felt in those moments.

What I'm cautioning against is a consistent strategy of brute force work in order to compensate for other things (fear of failure in my case). It's like the difference between socially drinking and being an alcoholic.

Long way of saying I agree with you.