The greatest single cause of atheism in the world today is Christians who acknowledge Jesus with their lips and walk out the door and deny Him by their lifestyle. That is what an unbelieving world simply finds unbelievable.
The dominant characteristic of an authentic spiritual life is the gratitude that flows from trust — not only for all the gifts that I receive from God, but gratitude for all the suffering. Because in that purifying experience, suffering has often been the shortest path to intimacy with God.
My trust in God flows out of the experience of his loving me, day in and day out, whether the day is stormy or fair, whether I'm sick or in good health, whether I'm in a state of grace or disgrace. He comes to me where I live and loves me as I am.
Suffering, failure, loneliness, sorrow, discouragement, and death will be part of your journey, but the Kingdom of God will conquer all these horrors. No evil can resist grace forever.