During my time as a student (especially in college) I tried several times drinking coffee past 8:00pm to keep me awake when I needed to study late into the night. I really did it because my friends said it worked for them, but I didn't notice any unusual changes. Today I am sure that coffee does not have a strong enough effect to keep me alert, that is only caused by responsibilities or worries
Coffee keeps me awake if I drink it after 8 pm, it can keep me awake and it takes me a long time to fall asleep. It seems like you are more immune to its effects jaja
And yes I am, you can't imagine how hard I tried!!!!