@Titanmaster07@nuclearfox__ I recommend visiting a world called Prismic's Avatar Search, it's a great way to try out avatars. As for public worlds, sort by active and choose one that matches your interests. You'll see chaos, but you'll also meet some pretty cool people.
@Titanmaster07@nuclearfox__ Quest 3 is solid. If you have good internet, I recommend setting it up wirelessly through SteamVR. If not, a good USB-C cable will work too.
@Titanmaster07@nuclearfox__ Which headset do you have, and do you wanna run it on a PC or standalone? I can walk you through the setup on either of those. As for the avatar setup, there are a couple options. You can set up a custom one in Unity (easier than it sounds) or grab one from an avatar world.
@Titanmaster07@nuclearfox__ Is there a specific part you struggled with, like setting up an avatar or getting the VR headset set up? I'm no VR wizard, but I'm sure I can help.