Pray Once

It was something that came to me all again. Pray once, isn't that what Jesus said. I mean - who is fooling who here - who can do that. Who actually believes that strongly in God and his power. I was actually able to do that once, in a major situation. We say that we have unanswered prayers, but Jesus was clear, that anything we pray for with belief... But who really believes, I can't say that I do. I wish I did, had that ability, but I don't...