[simplify]

This is tangential, but I highly disapprove of any encouragement to stay up late. Sleep is incredibly important for the entirety of the body. It's always better to get well-rested over a small amount more work done (which you'll eventually lose anyway since you won't be well-rested).

[adriand]

Different strokes for different folks. If it works, don’t fix it. Etc.

Some of us succeed not just despite our bad habits, but because of them.

[simplify]

Lack of sleep might not stop you from succeeding, but it can make you think slower, have poorer memory, get sick easier, eat more than you should, look older, and be more prone to depression and anxiety.

Please read "Why We Sleep" by neuroscientist Matthew Walker. Sleep is essential. Don't give it up lightly.