Beat that into my thick head: sleep deprivation is suicide.
My brain does not work on short sleep. It has reasons, too.
I only feel fine right now because I slept in the day, from around two to around six. I only can still stay up for as long as it takes to write this and take a quick shower because it's a Saturday tomorrow.
Sleep deprivation is counterproductive like all hell.
So I must pick my backside from my comfy chair and put it into bed on time every night. I must, or there'll never be any progress.