think has already helped reply all your questions, and there's a bunch of handy guides below. It is very easy to restock on Subeta, a lot of people who have played Neopets enjoy doing that when they start. Questing is also a great way to make sP, and once you have sP you can do whatever you want be it prettifying your pets, human avatar, or working on collections (there are a lot of items on here, and I think the artwork is pretty neat, so hope you do get to stick around :)

If you have any other questions, feel free to ask too!

Useful Links:

What to do on Subeta? (Temporary link here) FAQ Useful general information for newbies Finding friends (Chit Chat) SubetaLodge (Offsite item database, pet colours etc.)
Upcoming event: Pandemic