I learned so much from listening to this BYU Devotional entitled "Revelation" by Dallin H Oaks. ( It was originally given on September 29, 1981). He described several ways that the Holy Ghost guides us in our lives. Then he concluded with a section "Revelations not received" which I find particularly comforting and insightful:
"What about those times when we seek revelation and do not receive it? We do not always receive inspiration or revelation when we request it. Sometimes we are delayed in the receipt of revelation, and sometimes we are left to our own judgment. We cannot force spiritual things. It must be so. Our life’s purpose to obtain experience and to develop faith would be frustrated if our Heavenly Father directed us in every act, even in every important act. We must make decisions and experience the consequences in order to develop self-reliance and faith.
"Even in decisions we think very important, we sometimes receive no answers to our prayers. This does not mean that our prayers have not been heard. It only means that we have prayed about a decision which, for one reason or another, we should make without guidance by revelation. Perhaps we have asked for guidance in choosing between alternatives that are equally acceptable or equally unacceptable.
"I suggest that there is not a right and wrong to every question. To many questions, there are only two wrong answers or two right answers. Thus, a person who seeks guidance on which of two different ways he should pursue to get even with a person who has wronged him is not likely to receive a revelation. Neither is a person who seeks guidance on a choice he will never have to make because some future event will intervene, such as a third alternative that is clearly preferable. On one occasion, my wife and I prayed earnestly for guidance on a decision that seemed very important. No answer came. We were left to proceed on our own best judgment. We could not imagine why the Lord had not aided us with a confirming or restraining impression. But it was not long before we learned that we did not have to make a decision on that question because something else happened that made a decision unnecessary. The Lord would not guide us in a selection that made no difference." ( See "Revelation" by Dallin H Oaks)