The Kingdom of Godhead is not a myth but it is situated far beyond the boundary of the material cosmos and one can know it by the process of devotional service only.
Speculative knowledge alone, without devotional service, is not able to give liberation. On the other hand, even without knowldege one can obtain liberation if one engages in the Lord’s devotional service. — Sri Chaitanya Caritamrita, Madhya Lila, 22.21.
Always remember why you have joined ashrama or ISKCON. The real purpose of doing so is to be engaged in devotional service.
The human body is rarely achieved and although temporary like other bodies, it is meaningful because in human life one can perform devotional service. Even a slight amount of sincere devotional service can give one complete perfection.