Would be helpful to find out what sort of learning style you are.. from memory there are quite a few (e.g visual, auditory, kinesthetic/tactile, reading/writing) I found that I was a reading and writing learner so I would just read things and write notes to study. It also depends on what u are studying - most topics for school can be rote learned (memorised thru repetition). Weird tip but i would easily get distracted so I found that I would study more effectively when I listened to the 999 hour versions of songs on YouTube as it put me in sort of a trance that would help me focus I once listened to 4 hours of “taking the hobbits to Isengard” when studying for my finals