first off, at 30% bf you shouldnt be taking steroids. You need to work on your diet a lot and do more cardio. You say youve tried dieting and all that and it didnt work, all that tells me is that you dont know how to diet and eat correctly. Here's an example of a cutting diet
http://forums.steroid.com/showthread.php?t=75729
Have you tried eating like this? I highly doubt it. Im not trying to flame you but, diet and cardio are the keys not losing weight, not what drugs you take. Everybody is always looking for a miracle pill or drug to lose when, but to lose weight and keep it off comes down to dedication, not drugs!!!