The calling of Jesus Christ to a disciple is, "Follow Me." He did not say it would be easy, but He did say He would be with us, even to the end of the world. Jesus also said, "In the world ye shall have tribulation: but be of good cheer; I have overcome the world."
Some trials/tribulations are short in duration, others are very lengthy. Perhaps when we have been in the midst of an enduring trial we have cried out to the Lord with words like, "Lord, why have you led me into such stormy seas?"
With a peace that defies human understanding, we could hear Jesus answer, "Because your enemies cannot swim."