Hello!
Very importand if from start you chose good charecter , if anyone interested here is tier list of classes. Currently on Eu-Ru version essence, sure you will have other Dk class balance but for others for sure will be same.
PvP - with all books and good purchase - https://tiermaker.com/list/online-games/lineage-2-essence-top-pvp-chars-1159282/1534788
Best Adena Farmers windows with low purchase - https://tiermaker.com/list/online-games/lineage-2-essence-top-pvp-chars-1159282/1534848
Also you can always ask me about game Classes mechanics, how exp faster, items cost and etc at mine stream twitch /blednykh I have 3-4 years experience in essence!