Surrendering to Krishna: Taking Exclusive Shelter

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.

Q. My question is a follow up to an answer in this last digest: "Krishna promises to forgive and deliver all sinful reactions of those who surrender to Him exclusively."

Q. I have a "natural" tendancy to be very critical and hence find mistakes/faults in people. Most of the time, I find fault with people at the mental level and not necessarily express it. This habit also extends to devotees. I feel and know I am not supposed to do this. But, like I said, this has become a habit and I am finding it hard to relinquish it.

Q. 1. How to overcome depression?

Q. Part1: This is with regard to 'disliking other devotees' (referred to in a previous digest). Whilst I understand it is possible to forgive a person who has caused physical pain to another person, I have wondered for sometime about the following.