Repetition in prayer?

Jesus said in the bible, that praying should not be overused, for personal benefit. And that the most important thing about pray, is that you pray for others and not for ones self. You may pray as often as you like, jesus or god will always listen to your prayers, no matter how long or how many times you do it. So please, think of others when you pray and not just yourself. Because God will always listen. I pray only when i need to, but that is only a personal choice. So I hope next time your praying, it is for others and not for yourself, because that is what Christianity is about.