Typical overachiever paranoia: if I don’t agree to do *EVERYTHING* they’ll get *MAD* at me and take it *ALL* away. Life doesn’t work that way.
They want you to do more and more because you are good at it and get it done without constant oversight. You really think that if you establish a limit, they are going to just say, “Fucke this guy, if he won’t give me everything I want, then even though he is totally competent and self-regulating, I am going to tell him to take what he does provide and shove it all up his ass, and then start looking for someone else to take it all on, who might suck completely and be a complete disaster. Yeah, that’s my plan!!!!”???