Many fanatic spiritual movements have come and gone, but without the flawless philosophy of Krishna, they cannot stand. Therefore I want especially that my books and literature should be distributed profusely. This is our substance, real philosophical information, not some weak sentiments. So try for this, to give all men this Krishna Philosophy and many real devotees will come with us back to home, back to Godhead.
Without being self-controlled, without being disciplined and without being fully obedient, no one can become successful in following the instruction of the spiritual master and without doing so, no one is able to go back to Godhead. — Srimad Bhagavatam, 01.05.24.
To travel in another country, you need visa permission, similarly to go back to Godhead you need permission & mercy from his pure devotee.
Srila Prabhupada has given us the perfect process. Now mold yourself according to that and I assure you that you will go back to Godhead.
One can understand the Supreme Personality as He is only by devotional service and when he is in full consciousness of the Supreme Lord by such devotion, he can enter into the kingdom of God. — Bhagavad Gita, 18.55.
Don't think that just you take initiation and spiritual master will take you back to Godhead. You have to become serious otherwise opportunity of going back to Godhead will be lost.