I totally agree with this!

Many times what we ask out of selfishness, feelings, sentiments or emotions...

A lot of believers have this perception of because Mr. A has it and he's a child of God means they should also have it.

God saying no to our request(s) could also mean that He has much more in store for us more than what Mr. A has.

The best thing to do at every point in time is to yield to God's will. He knows what's best for us.