Devotees apparently go through some difficulities at a time but those difficulties do not affect them by any means because they are always protected by Krishna's merciful embrace.
If we will follow four regulative principles then sins will not be able to touch us.
When we read Srila Pabhupada’s purports, we become enriched with devotion. This happens because they are written with realization.
By only becoming aware of Krishna's greatness we can become aware of our minuteness. That's the way to become Humble.