When it becomes clear to us that prayer is a part of our daily program of work, it will also become clear to us that we must arrange our daily program in such a way that there is time also for this work, just as we set aside time for other necessary things, such as eating and dressing.
God alone fully understands what each one of us needs; we make mistakes continually and pray for things which would be harmful to us if we received them. Afterwards we see our mistakes and realize that God is good and wise in not giving us these things, even though we plead ever so earnestly for them.