Just on a personal note as someone who worked in the game dev industry for far too long and is still suffering for it... if

> Why am I awake at 1:00am, ruining my brain and body, trying to get this feature finished before the end of the week instead of three days later?

is actually you (or some other reader) please quit/find a new job ASAP even if it means a pay cut. You don't want to deal with back issues, heart issues, weight issues, digestion issues, blood sugar issues - none of that. Please respect your body and your limited time with us. A coworker of mine had a stroke at thirty - that is a life changing event with, honestly, no real paths to full recovery.