We are all tempted to give up in prayer. Giving up, in general, is one of the great temptations of the enemy.
That is why Paul encourages us not to give up. So, when it comes to our prayer life, it is important to hang on until God answers one way or the other.
Jacob faced an important moment when he easily could have given up. He wrestled with God. But we learn an important prayer as Jacob stayed in the game.
Watch this short video where I talk about this important prayer:
Ron Allen 
Eddie Hyatt 
Michael L. Brown