Your prayers are powerful, your prayers are heard. God does wants the best for us and the best from us. We pray about a lot of things, our prayers are heard. Do not stop believing in prayer. Even the Church in Acts did not expect Peter to be delivered, but their prayers were answered. Sometimes we do not know what to pray for, or we pray for things there is no need to pray for, just pray to Jesus Christ that his will be done and it will be heard.
Acts 11-18 Amplified Bible
11 Then Peter came to himself and said, Now I really know and am sure that the Lord has sent His angel and delivered me from the hand of Herod and from all that the Jewish people were expecting [to do to me].
12 When he, at a glance, became aware of this [[a]comprehending all the elements of the case], he went to the house of Mary the mother of John, whose surname was Mark, where a large number were assembled together and were praying.
13 And when he knocked at the gate of the porch, a maid named Rhoda came to answer.
14 And recognizing Peter�s voice, in her joy she failed to open the gate, but ran in and told the people that Peter was standing before the porch gate.
15 They said to her, You are crazy! But she persistently and strongly and confidently affirmed that it was the truth. They said, It is his angel!
16 But meanwhile Peter continued knocking, and when they opened the gate and saw him, they were amazed.
17 But motioning to them with his hand to keep quiet and listen, he related to them how the Lord had delivered him out of the prison. And he said, Report all this to James [the Less] and to the brethren. Then he left and went to some other place.
18 Now as soon as it was day, there was no small disturbance among the soldiers over what had become of Peter.