So the title says it all, why do I feel so fucking tired? I woke up at 7:00 am, went to uni from 10 to 12 and worked from 2 to 5. Its 6:30 pm now and I feel super tired. A couple of days ago I used to wake up at 6:00 am and stay up to 11 pm. I havent PMO'd or anything like that. Im on day 17 of NoFap btw.