what's happening?

i just had mocks

day before yesterday i broke up with someone that loved me more than i loved them

yesterday was the last day of my period (maybe it's hormonal??)

my grades are slipping. getting around Cs and Ds, my actual exams are in less than 6 months

i want to be a dr, but i feel like i just need to survive atp

i feel so depressed, like it hits me out of nowhere. im stuck in a rut. i'll be so motivated but then it hits me and the smallest things my parents say will make me cry. i went through a whole emo phase for 2 years and i feel like im slipping into the same habits. help
idk if it's just a phase/a weird period of time or if i'm actually getting depressed.