Step 1 - Study in the morning, I wouldn’t recommend studying at night time because you will forget approximately 55% of that valuable information you will need for an assessment the next day, which will not be useful, I speak from experience.
Step 2 - Ask your parents for help, flash cards and other revision websites like bitesize help you also.
Step 3 - Confront your teacher/professor about your issues with the task and they will offer you additional support after the period has ended.
I really hope these tips have helped you a lot. ☺️