EH,
Since you say you like the serenity prayer, you might like this one also:

O God, refresh and gladden my spirit, purify my heart, illumine my powers. I lay all my affairs in Thy hand. Thou art my Guide and my Refuge. I will no longer be sorrowful and grieved: I will be a happy and joyful being. O God, I will no longer be full of anxiety nor will I let trouble harass me. I will not dwell on the unpleasant things of life.
O God, Thou art more friend to me than I am to myself. I dedicate myself to Thee, O Lord.
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