Suzzer, I've hit a similar situation. Might be worth re-reading Gigabet's post on success and failure. My reaction has been to study harder to be a better player; move down in limits, and at the moment I'm mainly 1/2 tabling to try to fix the leaks which I may have developed. You just have to have confidence that the game is beatable and that you are clever and diligent enough to do it.
The sample size is just for Stars so it's not huge, but I know how you feel. My MTTs have been crap too, the only thing sustaining me is ring games. I'm sure you will pull out of it, as I will. Just gotta work hard.