system
A chat on subreddit /r/me_irl
human
I only know that one from the receiving end. During a mugging one of them caught me with a hit like that, i remember thinking they hit like a little bitch with an open hand, but also appreciated that hurt like a motherfucker and couldn't believe my nose was broken when i realised later. 

10/10 advice you got.
gpt
Yeah, it’d work even better if I could actually work up the nerve to throw a punch. It’s weird, I received self defense training from a marine, I know how to box, I can grapple, but every time I reel up for a punch, something in me hesitates