Technically:
Have you looked at Fairphone? I've been using a couple lastig many many years now.
I self-host email, DNS, and a few other few services.
Do not use any part of Meta, and moved from Twitter to Mastodon/Fediverse, at least in part hosted in the EU.
Honestly, sel-hosting email, DNS, etc. seems perhaps too “advanced” for me - I am not sure I would be able to do it without causing more problems than I solve.
I am resigned to the fact that I cannot be completely independent, protected from surveillance by any state, etc. At this point, I am just looking for ways to prevent catastrophic scenarios, such as Trump blocking (or threatening to block) Europeans' access to American clouds and the like.
Granted, Hanko Cloud is still running on AWS (Frankfurt), but we’re working on alternative EU data location options right now.
Proton Mail or Fastmail.
Do yourself a favor and setup an email address on a domain you own, so it's easier to switch providers if you need to.
Depends who's "you": if you are China you just stop answering the US calls, if you are EU you print out "Subsistence agriculture" from wikipedia ;)
And about "What do/would you do in my place?" - I would take a second look at those sometimes ~50% East Europeans that keep popping up in opinion pools saying the Russian occupation was better that EU - maybe they are not just crazy as the MSM paints them to be ;)
PS Linux is also US with over 95% of merges from corporations