Np, please ask as much questions as possible. Lots of people ready to help here!

But it’s important to note that the protocol specifies that relays SHOULD delete the event when a user request deletion. That also means that they can choose to not respect it. I haven’t heard about relays that doesn’t respect it but you should just know that it can happen.

If you’re a technical person, you can read the event deletion spec here: https://github.com/nostr-protocol/nips/blob/master/09.md#event-deletion