Fresh start

Returning player here, after years I suddenly had an urge to checkout the game and despite being overwhelmed, I made a mistake with the master class character and accidentally made a character I didn’t enjoy playing, so I’m starting a fresh Chung 4th path, last time I played I believe Ara or Add was being added to the game so it’s a lot, my question is where can I find like build paths? Or a solid guide on what to do after 99? Like I hear about raids and Eng game but I can’t even beat a dungeon outside of Elranoide. And where is the social part of the game? Every town is EMPTYYY and there’s not even any sparring rooms anymore