If one comes into contact with Krishna Consciousness and executes the process under the guidance of a bona fide guide, he is sure to go back to Godhead.
The Personality of Godhead may not be present before one's eyes, but if one is sincere in wanting such guidance, the Lord will send a bona fide person who can guide one properly back home, back to Godhead.
If you are happy to see other devotees being blessed, you will go back to Godhead, Krishna will bless you.
Strictly follow what Guru says. Don’t commit offense towards the vaishnavas, and then, sure, in one life, you will go back to Godhead.
We can remember God for millions of births and still remain in the material world, unless God is pleased with our remembrance.