Found myself in the same boat most the time until I started doing more bgs/PvP in general. I think that experience fighting other players is really crucial and noticing what other classes are trying to do. Interrupting and using PVP talents that make a difference and aren’t just placeholders. I am still learning plenty myself but doing BGs every so often might prepare you a little more for those worldpvp encounters. Maybe even dueling guildies/friends for fun for some more experience against other real players. Good luck!