heyy I'm in year 13 and i do pyschology.
When u say u have poor memory, do you mean u struggle with short -term memory? If yk that this is where u fall short, then utilise ur long-term memory as much as possible - i.e make notes, understand the topic early on in the year, and then keep doing spaced repetition, with flashcards, mindmaps, exam questions, videos, etc.
I can't give specific revision tips becos that is absolutely unique to u, but to give u some ideas, think:
do u work well with a schedule, such as a timetable? thn make a revision timetable.
alternatively, make a to-do list and tick off tasks (which is what i do).
do u work well with colours/ pictures/ highlighters? or do u find them distracting/ no useful?
do u retain info better watching a video on yt, or by reading, or by making notes?
do u work better in the morning, afternoon, night?
all of these should help u form a revision study habit, and then from there, get used to studying!
sure, it sounds dull, but if u especially hate it (like me, lol) then reward urself with short breaks throughout or a long one after a session. maybe schedule sm to do after a study sesh and have that as a motivating factor.
There are honestly so many things to think abt, but hopefully u should have sm sort of idea/s as to how to study. I know it sucks how memory is sm we cant control, but honestly consistently practising everyday/ most days is the key to keeping it in there. If u want anything else, lmk