After i get back from school, i sleep till like 7(1 local time) or 7:30 o'clock. Then, i eat ma dinner lightly and open something like a sitcom or anything i like which is visual through ma pc or tv. After that, I start studying. I don't drink coffee so i drink water when i start feeling sleepy and wash ma face and that keeps me from sleeping too. I used this method for more than 2 years and the result i got was quite good✌️. Best of luck to u🙌