Prayer does make a difference-a life-changing, mind-blowing, earth-rattling difference.
So often, we want big directional signs from God. God just wants us to pay attention. But we need to leave enough space in our days to get up from our prayers and actually look for God in the moment-to-moment things that happen.
The only way our faith will ever strengthen is for us to use it. We need to apply thought and prayer to our decisions and then trust God for the outcome. We need to set our sights on growing in faith, not shrinking back for fear of failure.