Before Christ, I sinned. After Christ, I sinned. I wasn't good then, and I'm not good now. Only God is good. Before Christ, I lived in sin, but now Christ lives in me. He, who knew no sin, paid the price for mine. Jesus saved me. I no longer live for sin, but for Him. He is good.
You'll experience genuine peace not when you're searching for it but in learning to enjoy every season in life even when you still can't figure out where it's taking you. Know that God keeps on working things out for your good.