Galatians 2:20 (NKJV)
I have been crucified with Christ; it is no longer I who live, but Christ lives in me; and the life which I now live in the flesh I live by faith in the Son of God, who loved me and gave Himself for me.
This is my favorite memory verse. It is good to rehearse this verse often, not so you can quote it, but so you can understand it and live according to it. For the Christian, life is not lived for one's own pleasure but for the pleasure of our Lord. It is an exchanged life, your life for His life. Before you were a slave to sin. Now you are a slave to righteousness. Once you let Him do the living through you, just hang on for the ride. Sometimes the ride might be rough but the joy comes from knowing where you're going. You may have a good grip on him but can you trust Him? He is trustworthy for two reasons: he is all-powerful and loves you. He loves me. I love Him.