Well for one, I spend most of my time in my garage, so it doesn't effect me that my parents are all-in with proprietary stuff like iPhones and windows.
My phone burned out last year, so when I need to call someone I use the landline. Might build a phone with a raspberry pi I have lying around, but for now landline gets the job done.
For my computer, it's a prefab, so I guess there's some liability there, but I don't need any proprietary firmware when installing arch so it's probably fine for what I have the means and technical skills for at the moment.
Software wise, I try to run as little as possible so games run smoothly, which lends itself to privacy too. Sway window manager, LibreWolf with NoScript, UltimMC so I don't need to log in with MicroSoft to play MineCraft, In the infrequent case that I need to use glowcord, I'll just use the in-browser version since the client is both probably spyware and just slower than the browser version.
In stores I wear a mask, and will continue to wear one regardless of what the gubbermint says because I like how they look. These days that probably doesn't do anything against facial recognition, but I wear the same tattered backpack and cartoon nerd glasses everywhere so that was already a lost cause. Not much can be done about that other than revolution.
I'd say it's best to look at privacy as a resource. You start with none, and you can slowly learn how to get more privacy.