While your effort does not earn you ultimate salvation, it has much to do with your spiritual growth.
We all know salvation through God's grace and our acceptance of Him; however, this doesn't excuse our efforts to grow closer to Him. Spend a quiet moment in prayer defining something specific you will do today to grow spiritually. Now go and do it for the Lord's sake.
This righteousness from God comes through faith in Jesus Christ to all who believe. There is no difference, for all have sinned and fall short of the glory of God.