bhai help karo

I have around 20 days left to my boards and for some reason i cant study
every time i think about it i feel so much pressure
ive been in this grade for so long now, i just feel like fast forwarding to 13th feb.
i know the syllabus, i just cant study
every time i open a book, i sleep
i cant sit to even do a sample paper
i just feel so done with this grade man
what should i be doing now with my 20 days left and how do i even regain motivation.