Easy free/low cost digital sovereignty steps:

Delete all apps and software you don’t use at least monthly.

Go to privacy options in all that remain and increase to max.

Delete more apps, you still don’t need them all. Especially delete google chrome and find another browser, TikTok, and any Facebook product.

Get a proton mail, don’t even migrate fully-just try it out.

Try a VPN you can pay with cash or BTC such as Mullvad or iVPN.

Enable 2FA on everything, never via SMS if possible. A FIDO key is ideal, such as Yubikey. If on android consider the Aegis authentication app-open source.

You’ll start off just wanting privacy, end up getting more productive and happy in the process or purging tech that is stealing from you.