Prayer to Saint John Bosco

In need of special help, I appeal with confidence to you, O Saint John Bosco, for I require not only spiritual graces but also temporal ones, and particularly (here mention the grace you seek). May you, who on earth had such great devotion to Jesus in the Blessed Sacrament, and to Mary, Help of Christians, and who always had compassion for those who were in suffering, obtain from Jesus and from His heavenly Mother the grace I now request, and also a sincere resignation to the Will of God. Amen.