Welcome back! There's a couple of links below to help start you off. Also make sure you check out Personal > Dashboard and collect any unclaimed Loyalty Boxes you might have. They have some neat perks which are a fun way to get back into things c:

Useful Links:

What to do on Subeta? FAQ Useful general information for newbies Finding friends (Chit Chat) SubetaLodge (Offsite item database, pet colours etc.)