I used to pray for a lot of stuff, and all got fulfilled until it doesn’t.
The funny thing is that we as a human tends to remember the negativity of events rather than the positive side. Try to recall events that occurred in the latest year or two of your life. You are more likely to remember how certain things went wrong rather than how other things made you happy. That is just how our brain works .
I am no different. It is hard to forget how things went wrong and saddening throughout my life. It seems so easy for those unwanted events to just pop-up in the thought throughout the days. To recall pleasant memories, however, needs more active work.
Probably that’s why God keeps reminding us in The Book about His favors , detailing some of many things around us that we could be grateful of so that we as a human being keep trying our best to have active work in recalling our pleasant memories.
 QS 55