Prayer always Works

B"H

In case, someone is searching for an answer:

The Baal Shem Tov said: "... And you must also have faith that the very moment the words of prayer leave your lips, your request is immediately answered. And if you say, "But there are times when one's requests are not granted," the truth is that they are granted, only this may be in a way that is concealed. For example, a person may ask God to take away his suffering, but the suffering may actually be beneficial in cleansing him of his sins, etc. Accordingly, God answers this prayer not by removing the suffering from the person himself but by lessening the suffering in the world in general. It is an essential tenet of faith that as soon as we speak out our prayers, what we ask for comes about immediately. There is no doubt at all about this" (Keter Shem Tov #80-81).