At level 49 the game starts to take more shape. I just wanted to point some things out in my opinion. And give you a base value look at things. I plan on doing it each break through point. Which is for say 39, 49, 59 and 69.
At 49 you are basically buried and I do mean buried in quest. It takes easily hours to complete them all if you ever do it. My suggestion is do as many as possible. No matter how boring they are. The game slowly teaches and provides you with all you need if you do this. This is essential to free2play players. Also the games systems will give you all you need if you follow them. Like upgrades to your gear and skills. Take advantage of all the cool downs and dungeon tries. No reason to skip anything ever its all worth it. I would also suggest staying at the break throughs. And gearing up to their level points and carrying on. You will just have to do it anyway. So just do it so you're not a liability in future dungeons.