Help please

I can't stop crying like tears are coming down without stopping i am currently in the bathroom trying to wipe off my tears but they are not stopping i don't why and i can't do this right now cuz i have to sleep early bc it's a school night and i have an important math test tomorrow and i don't want to get noticed by any of my family members or it will turn into a big deal i normally cry my heart out before i go to sleep so i can atleast feel comfortable when i go to school but it's way too early all my family members are awake so i need to stop crying
No need to tell me i know i am currently having a mental breakdown this week but please tell me how to stop them my head hurts like hell and my eyes are burning