Prayer changes things
1 Thessalonians 5:17 - "Pray without ceasing,"
It's really not a question of if we will wait on a prayer request, but rather how we'll wait. My experience has been that how we wait will determine on how long we wait for the answer.
I have always had this attitude of 'expecting an answer'; and having faith that God ALWAYS answers us. God wants us to be eager, waiting on His answer. There are times when the answer seems to be slow in coming, but looking back, I realized that I may not have been ready to handle the answer, in my timing.
Stay full of hope and expectation when waiting on God's answer to your prayer. Remain in faith, believing that the Creator of the universe is working in our life and will fulfill His Will in our lives.
Prayer does change things. I have so many stories of these changes in my life!