He believed and yet doubted and Jesus granted his request. Trust God, even when you have doubts. It does not matter necessarily how much faith you have as much as who your faith is in. Put what faith you have in Jesus. Watch Him be faithful to you.
Pride hinders prayer .
Jesus spoke of the Pharisee and the tax-gatherer who both were praying. The Pharisee boasted about himself while the tax-gatherer asked for mercy from God. Have the same attitude that Jesus had in heaven in His full glory as He had o Earth as a man. He was humble. If you are prideful, confess it as sin, repent, and continue in humility.