Hi sundara -- As asked above, what is it that constitutes a formal meditation practice for you? What, specifically, do you do in your practice? I'm not trying to set you up for some spiritual left hook, but it might help in understanding why you get no results, as you put it.
For my money: Trying to give things up is one of the surest ways of inspiring the very thing you hope to relinquish. Body, mind, intellect, emotion, greed, anger, ignorance, a Chevvy Malibu ... the list goes on and on.
In meditation as I understand it, each of us sits down, erects the spine, sits still, shuts up, and finds a focus point ... perhaps the breath, perhaps something else. In this exercise, a little at a time, the mind that leads us around by the nose on most days is carefully brought into a more relaxed and easy and quieter place. And it is in this (so to speak) place that the uncertainties and disquiet that brought us to meditation in the first place can walk away all by themselves ... not because you want them to or I want them to but because that is what actually happens. And coming into accord with what actually happens is just plain more sensible than pretending we are in control or wise or kool or filled with nifty results.
Smile just one smile