I'm the same. I think I lost my faith when I was 13 and figured out what masturbation was, then was subsequently told it was a sin.
Also, the dogma of the Catholic faith is extreme often times.
I too am simply agnostic now. I want to believe but need miracles in my life to show proof I guess.
Back to the OP, I do pray at times. Usually in moments of extreme pain, i.e. last night I was having intense abdominal pain that had me moaning where it woke my wife up. I prayed as I sat on the can hoping a turd or something would come out so I could be at peace.
I also attended church regularly a few months back when I was in some difficult training for a job. I prayed often that i would be able to handle the training. In the end, I failed, and while I don't blame God, I find it hard to go back to him after what's happened over the course of my life.
I'm empathetic with the idea of prayer though. We all pray, in our own ways. I would never chastise someone for their faith or beliefs so long as those beliefs don't conflict with the sovereignty of other human beings.