Prayer is good. Expecting or assuming an answer to prayer that agrees with our desires - not so much. However, prayer does not change God - it changes us! God’s will is not ours. Most of us have wills that are far from conformed to His. He sees all and His answer may be to not provide a direct or immediate answer. In such circumstances, we are well advised to ask, even beg for grace and then to persevere through this.
IOW, it is not a 1:1 ratio of prayer to answers or solutions. To expect this may indeed be unreasonable and can be corrosive to our faith. Many have fallen away when their prayers were not answered as they wished. God’s plan may indeed be for us to suffer, as suffering can be purification, a strengthening, or even discipline (about which we heard in the homily yesterday).
Suffering is part of human existence. Yet, suffering need not be a negative! Our Lord suffered for us and we are parts of His Body. We can accept our suffering (which may be physical,or mental) and, in the manner of Christ, offer it to the Father for the good of others - it is then that we are most Christ-like. Christ suffered out of love and so can we.
If we expect an immediate or acceptable answer to prayer, we risk losing our faith when it does not arrive on our schedule, or in the manner we prefer. Having a book on the Saints as a reference can be of great value, as all of them suffered. By their example, we too can follow in their footsteps and find satisfaction - even joy - in suffering.
To edify ourselves in and through suffering, I always recommend reading the Book of Tobit in the Old Testament. It directly addresses human suffering and reveals the temporal and eternal value of the corporal and spiritual acts of mercy - acts which will not go unrewarded.
It is good to remember that we are not permanent residents here on earth - but pilgrims on a journey to heaven - the Beatific Vision. We are often told to keep our eyes on the prize. Doing so tends to lessen our awareness of our suffering. Unimaginable beauty awaits for those who persevere - who struggle (strive) to enter by the narrow gate.
Sorry to go on so long, but I have some skin in this suffering game.