I think if you attempt to degoogle all at once, you will fail. Slowly migrate your essential things and look for e2ee, privacy respecting, FOSS and sustainable alternatives. Unfortunately I can't quite rid of the play store, but I've migrated mostly privacy friendly services. I'm still stuck with my friends being on discord, Spotify, and Google Maps for finding essential data (sorry open maps lacks too much info for where I am).
Tutanota controls my email, calendar, and contact syncing. I'm using ente for my cloud photo storage. I use Bitwarden for my password manager, pass key manager, and totp 2fa codes. All those services I listed are entirely FOSS and e2ee. For my browser, I use Fennec (Firefox fork) from f-droid. I use Droid-ify in place of the terrible official f-droid client. I try to use f-droid alternatives as much as I can.
My entertainment is my Feeder RSS feed, Boost for Lemmy, Moshidon (Mastodon fork), Twire as a twitch client, Newpipe for YouTube, and then Genshin Impact lol.