Welcome!
Few things you should know:
1. get a check mark in Nostr, there are few options, I suggest nostrcheck.me , once you get it, edit your profile and update your Nostr-Address, not having it will hide you in some clients
2. follow hashtags, a good way to find like minded people
3. think of your nsec as your Bitcoin private keys, act accordingly
4. chose a client that respect your privacy, meaning, you can sign in with a Signer protecting your nsec, it has TOR built in and above all, you can manage the relays you use. I suggest AMETHYST
5. add your lighting address in the profile so you can get zap, few options out there, I suggest MINIBITS for most people
6. last, don't marry one client, keep your options open, you achieve it by having your Nostr Address from one service and your wallet independent from your client, when you want to test another client you just configure your Nostr name and wallet on the new client. The client you are using may already be one that censors, one that is centralized...
have fun!
