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.