please don't burn out! not this close to exams!
im sure you won't lose your progress, the repetitive recall will have stuck into your head by how.
take a day off, your mind and body will thank you, it will make you feel more motivated to continue and refreshed, less groggy
exam practice is now key; you clearly know the content inside and out, but if this doesn't translate to marks on a paper then it'll all be for nothing. use past papers/specimens to see where you have gaps in your knowledge and revise from there.
no point doing mindless revision, you have the advantage now to use your time to target areas you struggle with