I have been trying to figure out what I have been doing wrong. I am lvl 50 and have tried many builds.

Unless I sit back and do some ranged DPM (Damage per minute, because they don't have numbers small enought for DPS).

I see myself being hit by everything for about 600 + all the time. My average hits (non crits) are 200 to 300. Crits hit at around 1k.

If I stealth in, as soon as I attack I am dead.

Just not fun