Best way to make protect yourself from ai while writing?

I’m just starting out and I’ve been really paranoid about this lately and it’s been making me feel super discouraged. I’ve been using Google docs but I don’t know if I can trust them not to start using docs to train ai like they do with Gmail. What programs/apps/websites do you all use and how are you navigating this obstacle? At this point I just want a typewriter lmao