Suffering: Dealing with Reversals

                                                                  Q. Prabhupada told us to "Chant Hare Krishna and Be Happy". I have been chanting the maha mantra since two years and I am following the rules and regulations but I am still very unhappy. I guess that there is a problem somewhere with me. My life is a mess. Krishna gives me too many tests which I can't handle. I have been struggling with my spiritual life and I am tired now. I am helpless.