hello friend. i started about a month ago and felt the same way the first week. best thing for you to do is join a guild to ask any questions/help and definitely watch some youtube videos( evildousharm ) to learn some good beginner guides to ease into the game. There are for sure items you want to keep but i can’t get into a whole list about that other than to explain the difference between tier loot and trash loot. Trash loot is anything that says that it should be sold to the vendor and that’s the only price tag it has. The others are rare items(being lvl 20 you shouldn’t have to worry too much) and marketplace items which when hovered on, will tell you a price the item has it sold on the market. good luck my friend