Yr 12 Student seriously behind stressing out, need helpWatch
i'd drop one of your subjects too.
Medical schools only look at your top 3 a levels so there is no point talking 4 unless you enjoy them all.
You could even only take 2 and then take a gap year and take the 3rd one then, so it wouldn't count as a resit.
It can be easy to get lost in a feeling of hopelessness, so maybe take today as a self care day (and throw away the game) and then tomorrow make a plan and fight for the future you want. There are foundation courses if you are worried about grades, however there are plenty of other career choices similar to medicine that might also be for you.