Unhappiness does not leave till God is realized. There is no other beneficial way to realize Him except doing His japa, His meditation, His worship and singing His name (Naam Kirtan). The company of saints (satsang) and reading of spiritual books are also of help on this path. This body very often says one thing: "vishay (sense object) mane (means) vish (poison) hoi (becomes)". The enjoyment of sense objects leads slowly towards death –"slow poison". That is why try to spend as much time as possible with Him.