It's time to start my GrapheneOS journey. Any tips/recommendations for starting?

My plan:

1) Use the owner profile only for administrative purposes.

2) Whenever possible, use nostr:npub10r8xl2njyepcw2zwv3a6dyufj4e4ajx86hz6v4ehu4gnpupxxp7stjt2p8 and Obtanium.

3) Avoid unnecessary apps.

4) Don't be too restrictive; it's a midterm project.