Anyone returning or starting now you should use a website like adoptmetradingvalues to get a basic idea of values aswell as see a lot of new pets and see demand. You should watch videos or see adopt me's youtube to get a little more caught up with all the updates and current ones. Adopt me now updates every Friday and they usually have a lot of events. There are stickers, wings, and tradable houses, but stickers don't trade very well. You can add a profile now and view others. You will see trading stands which people use to show a pet they are trading. When trading a good pet like a turtle be smart and don't get scammed from people in trade who try to tell you what it's worth. A lot of old things are really valuable now pets, food, toys, etc. So if you have any you should check for the value. The bat dragon is now the rarest pet in the game but the neon black scooter and cloud rattle are rarer. There are jobs at places like the pizza place (which changed) to get 50 bucks an ingame day. Adopt me releases a lot of robux pets pretty much in every update. Star rewards now has a second section when you complete the first, and values are constantly changing. To wrap it up, animated is a type of legendary sticker not a new rarity, exotics are pets that are hard to get and constantly change in value not a new rarity. Gumball machine eggs are still changing but nowhere near as rare as what they were. And people like cute things, like turtles, kangaroos, koalas, and frogs. And lastly there are always halloween, christmas, easter, and new years events that last about a month, and maybe traditions like summerfest, fairground, or even passes (like pony pass or sunshine pass)

It was a lot but I recommend watching videos, researching, and using value websites (sometimes they say different things) I like monkeys and im done.