The size of your success is measured by the strength of your desire; the size of your dream; and how you handle disappointment along the way.
Disappointment is a sort of bankruptcy - the bankruptcy of a soul that expends too much in hope and expectation.
Our heavenly Father understands our disappointment, suffering, pain, fear, and doubt. He is always there to encourage our hearts and help us understand that He's sufficient for all of our needs. When I accepted this as an absolute truth in my life, I found that my worrying stopped.
Disappointment is inevitable. But to become discouraged, there's a choice I make. God would never discourage me. He would always point me to himself to trust him. Therefore, my discouragement is from Satan. As you go through the emotions that we have, hostility is not from God, bitterness, unforgiveness, all of these are attacks from Satan.
Young alienation, disappointment and heartache is all a part of the first real growing up that we do.