Doing well in your courses a guide by Andrej Karpathy Here is some advice I would give to younger students if they wish to do well in their undergraduate courses. Having been tested for many years of my life (with pretty good results), here are some rules of thumb that I feel helped me: GENERAL All-nighters are not worth it. Sleep does wonders. Optimal sleep time for me is around 7.5 hours, with an absolute minimum of around 4hrs. It has happened to me several times that I was stuck on some prob...