I started doing some side activities (gym, theater, creative writing) etc but haven't taken time of in... years? (i use my PTO from work to study for uni exams)...
Or, rather, I can, but just slowly and half-assed.
It sounds like you need at least a weekend where you do absolutely nothing, like post-hypnotic Peter Gibbons in Mike Judge's 1999 accidental documentary Office Space. Just sleep. It sounds like you're worn the hell out.
It also sounds like you're killing yourself to live.
Of course, if you're not into Frank Zappa you won't get the bit about dental floss; it's in a song called "Montana".
https://www.youtube.com/watch?v=Qs0CGOwWmCI
No bombs, of course, because while a bullet can have your name on it, AOE damage is addressed "to whom it may concern" and I don't want to hurt some poor schmuck who didn't have it coming. Though if a Republican annoys me I might mail them some Anthrax albums. See what they make of Persistence of Time or Among the Living.