u/thunderslight

Anytime I try to study I get insanely sleepy to the point ill fall asleep where im studying whether thats in my room or at a table or in a different environment. However, the moment I stop studying im wide awake and can pay attention to anything and its so frustrating. I work from 7:30am to about 3:30 and will nap after work for a bit or try caffeine to stay up but nothing seems to be working. Does anyone have any solid tips for getting yourself to focus or struggle with the same thing? I also go to bed at about 11pm or midnight in these cases so sleep isnt really an issue.