1) Exercise regularly
2)Eat good fruits e.g Banana, orange, watermelon,Apple
Apparently fruit salad is the best
3) Have a good nap
4) Have a shower
5)Go to quite environment
6) Read and study 😂👏
Sounds good but the first point in my opinion should be study, study, study. Everything else is just a bonus. The best we can do is to do practice exams as much as possible.