Years ago when I was in despair, a sister in Christ, Catherine Quinto (now a nun), sent me two prayers that became very dear to me, even to this day. I hope these prayers help you as much as they have helped me.
Both are by St. Ignatius of Loyola.
Prayer of Surrender
Take, O Lord, and receive my entire liberty, my memory, my understanding and my whole will. All that I am and all that I possess You have given me: I surrender it all to You to be disposed of according to Your will. Give me only Your love and Your grace; with these I will be rich enough, and will desire nothing more.
Prayer of Generosity
Lord, teach me to be generous. Teach me to serve you as you deserve; to give and not to count the cost, to fight and not to heed the wounds, to toil and not to seek for rest, to labor and not to ask for reward, save that of knowing that I do your will.
Amen.