I love reading all these letter written by Srila Prabhupada to his aspiring disciples, and the following letter written to Susan Beckman is very sweet.
…Lord Sri Chaitanya Mahaprabhu, the incarnation of Godhead in this age has delivered the medicine for all problems of the world by his introducing the Sankirtan movement. Sankirtan means to chant that Holy names of the Lord and to give up all other engagements. The chanting is a process of purification. Just like we use soap to cleanse the body, this is material, but the chanting is spiritual cleansing.
…The conclusion is that one should learn the art of chanting the Holy name of Krishna 24 hours a day and that alone is the remedy for all problems of material existence. How is it possible to chant 24 hours a day? Lord Chaitanya gave the hint, “One can chant the holy name of God in a humble state of mind, thinking himself lower than the straw in the street, more tolerant than a tree, devoid of all kinds of sense of false prestige, and always ready to offer all respects to others. In such a humble state of mind one can chant the Holy name of God constantly.” So I cannot give you any better advice for your problem, simply chant Hare Krishna and everything will be all right. (Letter to Susan Beckman)
Full Letter More