Honestly if you've got something important to do and you feel anxious or stressed about it like exams, an important meeting etc... An existencial crisis is a good way to make you feel numb to these emotions and situations which could greatly benefit you.

For me the universe videos dont cut it aymore so i just usually go watch an animal eaten alive or just something to make me generalize life and existence and to remind my brain that the problems i have right now dont matter because you and everyone around you will be dead and life is neutral in the end