When we associate with devotees we slowly-slowly get to know about their great qualities and thus we give up our envious nature.
ISKCON is the factory of the pure devotees. All you have to do is to stay on. Our only concern is to remain in ISKCON and to associate with devotees.
Pure devotees of Lord are associates of Lord. To associate means to surrender unto them and surrender means to follow their instructions.
For Financial gain you need finance experts, similarly, For Spiritual gain you need association of devotee.
In the sun there is great heat and light, and by reflecting the greatness of the sun's light, the moon in night also appears great. Actually the moon is by nature dark ans cold, but in association with sun it has become accepted as great. Hence by association of the Great, one appears great.
One should learn how to associate with the devotees of the Lord by gathering with them to chant the glories of the Lord. This process is most purifying. As devotees thus develop their loving friendship, they feel mutual happiness and satisfaction and by thus encouraging one another they are able to give up material sense grantification, which is the cause of all suffering. — Srimad Bhagavatam, 11.03.30.