To be honest my prayers have never quite been 'answered' when I was a Christian. Later after I left the church I made a few off handed wishes to my ancestors in a traditional ritual type thing. And you know what, I met a boy, did good in school, and learned a language, I was like thanks grandpa, you cool
But seriously I think I just probably became a better student and the boy is coincidence. I think prayer is something nice to have though. There's so many things that we cannot do, so it feels nice to be able to throw a plea into the wind. When I do now though, it isn't to an Abrahamic god anymore.
You know, I've always wondered why it is that if one is supposed to pray in private and not flaunt their piety, how exactly do Churches justify their own existence when they are providing the means to violate both standards?
By not telling their followers that they can't justify their existance. Probably why the Catholic chruch was against Marting Luther's plan to make the bible more accepssable to the public, among other reasons.
I see prayer is the one on one time you have with god. though you do most if not all of the talking. it's not a solve all like Duct Tape. but it does help calm the mind, lets you vent your problems and think things through.
though if you look into the concept of shared consciousness "curse you Spirit Science XD" there may actually be some effect to prayer!