At some point I learned to set boundaries with my mom and IT help. I know I'm good at it, hell I worked geek squad for years, but she got demanding. Started calling me out of the blue demanding help even if I was in the middle of something.
"My printer doesn't work". "Okay, well I'm out right now.. I'm not even home". "BUT I NEED TO PRINT SOMETHING FOR TOMORROW" "Okay, well if it's that urgent the library has printers, or the FedEx office can do it. I can help you in a couple of days on my day off"
Me helping is a gift, it's something I give to you, it's not something I am required to do or an obligation. Since a couple of confrontations like that it's gotten much more manageable