Mike on Nostr: Hey 0xchat I've just setup a public group "Bitcoin Non-dom", I left it at the ...

Hey 0xchat (npub1tm9…xn72)

I've just setup a public group "Bitcoin Non-dom", I left it at the defaults, including using your relay.
wss://groups.0xchat.com

I run my own relay, through relay.tools
https://nortis.nostr1.com/

Can I change to my own relay and what are the advantages disadvantages of doing so?