When we look for success, it should be for the sole purpose of boasting sincerely in Christ. There's no other reason for it. Success is only worth it when the more intense it gets for you, the more you find yourself bragging for his glory rather than your own.
Think of the self that God has given as an acorn. It is a marvelous little thing, a perfect shape, perfectly designed for its purpose, perfectly functional. Think of the grand glory of an oak tree. God’s intention when He made the acorn was the oak tree. His intention for us is ‘… the measure of the stature of the fullness of Christ.’ Many deaths must go into our reaching that measure, many letting-goes. When you look at the oak tree, you don’t feel that the loss’ of the acorn is a very great loss. The more you perceive God’s purpose in your life, the less terrible the losses seem.
God's relationship with man does not work in a way in which man stumbles and then God has to drop what he is doing in order to lift him up; rather, man stumbles so that God can lift him up. Hence it is utterly impossible to truly diminish his glory.
Happiness is not a laughter. Happiness is not both rejoicing and mourning too. Happiness is a tear. The more we laugh in this life, the more we will be in sorrow. But the more God gives us cry, the more we will be in joy.