Google "degoogling".
Actually don't.
Search it on DuckDuckGo.

Access YouTube through Invidious.
Install GrapheneOS on Google Pixel phones, and /e/OS on other bootloader-unlockable Android phones.
Or go for a real Linux phone.
Swap Chrome for Librewolf or Firefox.
If you use GMail, move to a different provider.
Use Openstreetmap.
Replace clouds such as Google Docs, Drive, Calendar, and Photos with alternatives.

P.S. codeblock is so that markdown doesn't fuck up the line breaks