1) Sleep more! Unconventional, I know, but sleep really does help you process the information you’ve learned throughout the day, and it also helps your brain rest and recuperate so that you are awake and alert while solving 100 equations, or writing two page-long essays!
2) Drink water! Before, during, and after the test!
3) Put down the screens! While studying, try to limit yourself to one screen at a time (only if necessary to study!). Studying will be more meaningful, and hopefully not take as long, if your attention is not divided between Instagram, Snapchat, and your AP World History notes!
4) Try studying with a friend! Reviewing and talking out notes with a classmate or friend can be helpful, and definitely less lonely! The more you teach another person about the topic, the more knowledgable you become!
5) Create a study plan! Don’t start studying the night before your final - plan out strategically, know when you can devote the most time and attention to studying for each test you have, and write out a plan so you can stick to it!