Hmm. I assign an exceedingly low probability to the proposition that an omnipotent, omniscient being exists and has existed for as long as the universe has existed, but I don't disagree with your anticipations. I don't see how your anticipations are very connected to this proposition.

I can easily imagine you gaining a sense of mental clarity from the act of prayer and procuring certain benefits from the lifestyle choices that you mention. I'm not sure what probability I would assign to these predictions, but I think that they would range from around .15->.6 In my eyes, your anticipations have a considerable of probability of being true regardless of whether or not a being which I described in my first paragraph exists.

I agree with hegemonicon in that (at least in this context), we're more interested in your anticipations that are related to the above proposition rather than those regarding the effects of certain lifestyle choices.