Bucky implanting himself with trackers according to JARVIS's instructions, so JARVIS will always know where he is, bugging himself so JARVIS can always hear him. Adding extra surveillance all over his rooms/apartment so JARVIS can see EVERYTHING.
JARVIS having him report what he's feeling, what he thinks about when he jerks off, describe his nightmares/flashbacks in detail, explain all his strategies for self-harm/self-punishment/escape, because JARVIS can use the data to take better care of him. (JARVIS telling him what to think about when he jerks off. JARVIS simulating the sounds/voices of a flashback in order to change it and pull him out. JARVIS locking him away from the knives sometimes, and oh yes, he knows where ALL the knives are.)
Re: always watched
JARVIS having him report what he's feeling, what he thinks about when he jerks off, describe his nightmares/flashbacks in detail, explain all his strategies for self-harm/self-punishment/escape, because JARVIS can use the data to take better care of him. (JARVIS telling him what to think about when he jerks off. JARVIS simulating the sounds/voices of a flashback in order to change it and pull him out. JARVIS locking him away from the knives sometimes, and oh yes, he knows where ALL the knives are.)