Exactly this^. People probably tell you this everytime, but starting now will benefit you in the long run. Get your textbooks together, go through them, make notes, questions on topics you don't understand and just go from there. Small steps and then onto the big steps as the weeks go by.
Go over past papers, watch YouTube videos and make flash cards on topics that require memory. Make sure you don't pack in too much revision, start light and slowly get into the routine of it- Good luck! X
im dreading it aha and I overthink and everything lmao