Prayer is about building a relationship with God. Sometimes God’s will is different from what we want. I know that is very hard sometimes when dealing with a death in the family, a serious illness or some other crisis. One has to accept that God’ knows what he is doing.
The 15 St. Bridget prayers are a meditation on Christ’s passion. They contain specific requests in the prayers themselves, such as to continue to receive Holy Eucharist, to have final perseverance (persevere in our faith and be in a state of grace till the end), and for Christ to please help us at the hour of our death. They are meant to bring us cloesr to Christ and to help us grow in faith and in our relationship with God. It is not a case of “say these prayers for a year and God will grant your wish like a genie in a bottle.”
I would very gently suggest that you please re-examine your prayer life and why you are praying…it should be like talking to God and Mother Mary and the saints, not always expecting a wish to be granted, or relying on “promises” of dubious origin. You can trust in Jesus, Mary and the saints that if you pray sincerely, you will definitely benefit in some way, though it may not be by getting the request you asked for. You might get something better right now, or something better down the line, perhaps even after death.
Even Jesus himself did not have all of his prayers granted by the Father. He prayed in the Garden to let this cup pass from him, if it be God the Father’s will. God the Father’s will was different, so Jesus accepted that and went forth to be tortured and crucified. If Jesus can accept that sometimes God’s will is different from his own personal human will, then we need to also accept that.