One Little problem

If you die, the problem usually comes from either your backline (lack of heal/prot) or the rest of your team (lack of shutdown/debuff).

Your build in itself is quite irrelevant. Lyv is correct. If you keep dying, it may not be just you that is the problem. Your build is decent, although if I were you I'd put more points in mysticism (as it reduces enchantment cost and gives you armor in PvE), maybe take out a bit of scythe mastery, and of course rune your armor. I'm assuming you're level 20, judging by the amount of attribute points you have, so you should ideally have max armor. For a dervish that is 70. Having more armor can make a lot of difference, as the more armor you have the more damage is mitigated. Now, that's all great, but it still may not solve the problem. The root of the problem most likeley lies in your backline. Look at your monks' builds and see what they're running. If there isn't enough healing/protting going on, then of course you will die. And if you don't think one hero (assuming you're playing with heroes) can do the job, then use two. That being said, you also need enough damage to get the job done; I'd advise you not to run something like two healers in a 4-man area. Since you've completed the quest Hunted! (I'm assuming, by the blue-colored drop down box with your profession in it) most of your time will probably be spent in 8-man areas. So, as the party size is bigger, the foes are tougher and groups may be bigger. It may be best to run two healers (or even three, if you are sure that the other 5 party members can handle the damage dealing) in those areas.

So your build is decent, but put some more points into mysticism. Get max (70) armor if you don't have it already, and put runes on it. Look at what your monks are running, and make changes as you need to. The problem isn't really your build, its that whoever is healing/protting you isn't doing a great job.

Hope this helped
-Sammich

If you die, the problem usually comes from either your backline (lack of heal/prot) or the rest of your team (lack of shutdown/debuff).

Your build in itself is quite irrelevant. not entirely.
thats like saying: "if you go into a fight without a single skill on your bar, and hope to survive".

self sustain is like a small part of the build, you could at least have a small amount of sustain in your build then it would be better. of course to have no sustain you would have to compensate for massive amounts of damage, but if there is absolutely no damage in the build, as well as no sustain, then the build itself is not efficient or worth it.