Whether our prayers are answered or not is up to us. I know, it sounds backward. We give our requests to God and expect that it’s up to Him to answer. But everything about God moving on our behalf depends on how badly we want it. Over and over again, Jesus told people, “According to your faith, let it be so.” If they only had faith for a minor healing, then that’s all they got.
Therefore I say to you, whatever things you ask when you pray, believe that you receive them, and you will have them. (Mark 11:24)
This gets harder when what you are asking for is pretty big, but only in your head. Jesus said, For which is easier, to say, ‘Your sins are forgiven you,’ or to say, ‘Arise and walk’? (Mat 9:5) Healing a toothache or resurrecting someone from the dead or forgiving sin is all easy for God, so it doesn’t matter how big the issue is.
All you have to do is believe. The same miracles that Jesus did are waiting to be done today. He’s the same yesterday, today, and forever. If you believe, He will do it, so go ahead and believe big. If He’s going to do it, let Him do it all the way.