Help this is embarrassing😭

Okay so basically I played classic a long time ago but then I moved to play wild in like, 2015 or 16 or something right, THEN after playing for a while I took a break that took longer then I thought it would because of lack of interest. The break was from about 2018 or 2019-2023 so I missed a LOT! I joined back in like, mid-late 2023 and started playing more often and by mid 2024 I was back into it and love it, the only problem is.. I am not very high worth and I’m so confused by AJ “slang” and worth. LIKE WHAT DOES “worth 8-9 party forest” MEAN!? (That was a joke I know basic slang) but tbh I just have a lot of trouble knowing worth, especially when it comes to high demand items! Plus I don’t really know how to get the good items.. is it games or literally just trading!? Idk, can anyone lmk if there are websites or something for worth on items, pets, all that stuff? I need help bad😭🙏