u/Healthy_Lack5620

So I am fairly new to GW1 and have played a lot of older MMOs over the years but this game is a masterpiece already. So I made a necromancer and picked mesmer as my subclass which I sort of regret but I played a lot of the pre-searing and got to level 15 and I made 34 platinum from trading there. Now that I moved on to post my question is what should I be doing currently and should I bother getting new armor or wait til level 20? Is there some general guide for how to progress a character to end game?