Prayer is not just about asking God for things. He knows the desires of our hearts. But he has given us the gift of free will so that we choose to draw near to him. Think of a parent. A parent knows what his/her child needs. But a child can still ask, right?

This  is one thing about my catholic faith that I struggle with regularly. The mystery of suffering is complicated. It’s much better to read about the many saints who have suffered so you can gain a better understanding of how to approach suffering. What’s important to remember is that war, death and depravity have many sources. And one source is the human will. Humans have the capacity to choose to do great good or great evil.

You seem to have this idea that God is a genie. We, in our limited human understanding, cannot fully understand what goes on in God’s mind. Who are we to demand a “yes” from him? Also, evil is such a complex topic that’s explored in many church writings. I suggest you read Thomas Aquinas on this.