All prayers are answered. Sometimes the answer is “No”, and while the reasons are not immediately apparent to the petitioner, over time, the wisdom of the Deity shall prevail in the end.
The Universe can be a cruel and unforgiving place, if taken at face value. Patience and application of accumulated experience can find those tiny crevices and indentations on what may appear to be a sheer rock face, and what seemed an insurmountable obstacle may eventually be overcome.
Jesus never promised health, wealth, and prosperity.
He promised that in this world, we would have tribulation, but to be of good cheer anyways because HE has overcome the world.