I've had them for as long as I can remember. How exactly are you trying? I do the "Am I Dreaming?" thing. Basically you pick an item and whenever you see it you ask yourself "Am I Dreaming?" After a while it will become second nature to you, so when you DO see that item when you're dreaming you will instinctively ask yourself if you're dreaming, and once you realize you are, you will be consciously aware of what's going on. The thing is not to pick something you see every day, but only once in a while. I haven't had a ton of success controlling them for too long though, I get to excited and wake myself up most of the time, but I've had some...interesting ones
oh, and Oregano is heavenly. i put dat shit on everything