hello /sci/

I know personal questions aren't meant to be put here, however, I was thinking maybe someone could have some insight.

I am currently in UK college and have been accepted into a top university in the USA.

My issue is that i go through periods of extreme productivity followed by periods of extreme depression and nihilism, at GCSE and A level this isn't an issue. However, when I go to university I presume I will fall behind when I inevitably go through a period of nihilism. I have tried to brute force it through the stage of depression, however, this just leads to the depression hitting even harder

any help is appreciated
-anon