In this age of Kali, the only way is the chanting of the Holy Names of Hari,and the Supreme Personality of Godhead, Sri Krishna Himself appeared as Lord Chaitanya Mahaprabhu, and instructed everyone to chant the Hare Krishna Mahamantra. So please chant this with all your heart.
Please understand that this Holy Name is not just a combination of some letters and syllables as it appears to the material eye and ear. But it is Krishna Himself. Just as the deity is Krishna Himself, Srimad Bhagavatam is