I am a medicine student too .. pc2 and the same thing happened to us due to corona .. I really feel you, I haven't done anything productive regarding my school work and they said we might be back soon ... I dont know if this might help u but what I'm planning is to calm myself and make short term plans uk like finish some portion in some amount of time and not to be hard on myself ... I know it feels a lott especially when u haven't studied for a long time and u probably dont knw where to begin so just begin from smtn that intrests u and take it from there .. hangg in theree