The solution is in the hands of the Lord.

Psalm 77:1-20
I situation of psalmist was under distress, and he was sought the Lord, stretched out untiring hands to pray and his soul refused to be comforted.
I mused and my spirit grew inquired, my heart mused and my spirit inquired.
1)Will the Lord reject forever?  Will her never show his favor again?
2)Has his unfailing love vanished forever?  Has his promise failed for all time?
3)Has God forgotten to be merciful? Has he in anger withheld his compassion?
I remember, thought and meditate on all His words and consider all His mighty deeds.
About the six questions, the answer are "Not", the Lord is everywhere but His footprints were not seen.
Why?
When we distress and pray to the Lord, we usually could not see where is the Lord, why he will let us suffer these afflictions.
What we have to do is to 1)remember, 2)thought and 3)meditate on His words and 4)consider all His deeds. Let us have faith to the  Lord.
For I am a servant of the Lord, I am a human being, some plan or what the Lord did I do not know, but I believed the love of the Lord is forever to me.
How?
Whenever we are distressed or heart mused and my soul inquired, come forward to the Lord, pray to Him and meditate his words and consider all his mighty deeds. The solution is in the hands of the Lord.