hmm it depends on what you are studying, for me i like to break down the ways i understand for humanities and science subjects
for stem subjects like math, if im struggling to understand topic eg integration app
i would:
1. look through the school notes my school gives me
2. if there are any lecture videos, rewatch them
3. practice the eg questions from the notes/textbook
4. i find this really useful but if i really dont understand some concepts- i would seek my teacher out for an afternoon consult.
5. do specific questions on this topic from past papers
for humanities, esp english which can be subjective
1. reading the items several times really helps to get eased into the material
2. doing your own research and looking up papers eg on jstor to get more understanding through the perspective of others
3. writing my own essays and asking my teacher for feedback
but it really depends on your learning style tho, so i would suggest over this month get a headstart by experimenting with your possible methods haha