You are never too old to set another goal or to dream a new dream.
Regardless of the phase of life you are in, never lose interest in life and how you can make yours and others better. Ask God for the energy and courage to be a life long learner, achiever and believer.
Brothers, I do not consider that I have made it my own. But one thing I do: forgetting what lies behind and straining forward to what lies ahead, I press on toward the goal for the prize of the upward call of God in Christ Jesus.