you should start with pve build doing astral and quest and when you get to lvl 75 youll have a reset for your build so you can make
a healer and also second build so you can choose between 2/3 pve-pvp-heal.
for start use normal pve dps build follow the yellow stars to know what to put on talents and rubies skills.
heres my dps pve build of lvl 75 just for you to know what you should have at the end :
https://tinyurl.com/ybz6mnbc
start with the critical chance rubies and bloodrubies and continue its doesnt rlly matter what you take first.
(this talent calculator is for update 9.0 so there are some rubies that you dont have yet so ingore them)
i hope i helped you.