Each time, before you intercede, be quiet first, and worship God in His glory. Think of what He can do, and how He delights to hear the prayers of His redeemed people. Think of your place and privilege in Christ, and expect great things!
A praying man can never be very miserable, whatever his condition be, for he has the ear of God; the Spirit within to indite, a Friend in heaven to present, and God Himself to receive his desires as a Father. It is a mercy to pray, even though I never receive the mercy prayed for.