Your lack of sleep adds to your already-tired-looking appearance. I was awake for 33 or 34 hours yesterday before I finally slept. When I told my friend's little brother at 2PM that I hadn't slept for 26 hours at the time, he said "I don't believe that, you don't even look tired." Last night, I slept on just a mattress with no pillow and covers. Kek. And it was freezing last night. I was just too tired to care. But, I have been doing this many times, not sleeping and staying awake for over 30 hours. It's not good for your brain man, you're still developing at your age. Lack of sleep leads to brain shrinkage. This adds to the brain fog you are already experiencing, man. Just shut down the computer, turn off your mobile phone and enter dreamland, brother. I'm gonna sleep in an hour or so, though. Maybe two. I suggest you do the same.