When we expose ourselves to severe vaisnava-aparadha, it is like pulling our devotional creeper out from the root. It doesn't get the nourishment then we systematically dry out, then we lose the taste for chanting, reading, deity worship, book distribution, what could be worse! We lose devotional service ultimately.
Devotional service is so simple, but devotees because of their material inclinations make it complicated.
Keep up your endeavor for engaging in devotional service. Chanting the Holy Names is a vital point of devotional service. Be sure to improve on your quality of chanting. All other services are strongly supported by chanting of the Holy Name.
In Vaikuntha nothing exists but devotional service, rendered through sankirtana and in many other forms. It goes on incessantly, with great enthusiasm spreading the ecstasy of pure love.
Pure devotional service is so spiritually relishable that a devotee becomes automatically uninterested in material enjoyment. That is the sign of perfection in progressive devotional service. A pure devotee continuously remembers the lotus feet of the Lord Sri Krishna and does not forget Him even for a moment, not even in exchange for all the opulence of the three worlds.
By performing congregational chanting of the Hare Krishna mantra, one can destroy the sinful condition of material existence, purify the unclean heart and awaken all varieties of devotional service.
Chaitanya Caritamrta on Antya Lila 20.13