want to pass my alevels but unsure if it’s possible anymore

i didn’t do a lick of revision in year 12 or listen enough in lessons to gain a sufficient understanding of the content, i sort of started doing light revision in y13 and for my mocks which i’m currently halfway through (3 exams left next week), in the half term i kind of put my head down and did about 8-10h of focused revision a day which was pretty much the first time i somewhat locked in, and i didn’t know i actually had it in me tbh. if i were carry on like that and do that amount in the easter holidays (and weekends if i can) is it possible i can achieve A’s or B’s in the real thing? bearing in mind one of the subjects i do is OCR english literature which has horrific grade boundaries (95% required for an A* i believe), also i have a weak memory and severe focus issues which requires me to go over stuff a bit more than the usual person. i just don’t want to work my ass off to only get C’s and D’s