The Pharisee and the tax collector

In Luke 18:10-14, Jesus talks about how the Pharisee was proud of himself for not being like the tax collector, when he was praying. I struggle with this, more times than none. I'm comparing myself to this person or that and it might not be in prayer, but the thought is there and God knows. I am not any better than the person serving a prison sentence or the person leading a Bible Study. We, as Christians, get arrogant and like to boast to ourselves, or friends. Point is, it's a level playing field. There are only two kinds of people in this world, saved and unsaved. We need to pray for both.