Worry. Stress. Angst. We all experience mental and emotional discomfort Christian and non-Christian alike. It's part of our imperfection as human beings. However, we do have an outlet to dump all of our worries, all of our cares, all of our burdens into. That outlet is God...Jesus.
Comfort comes slowly. Trust, call it belief or acceptance, in the process of actually giving over your discomforts to God takes time and practice. But once this habit becomes part of your life, a part of your unconscious activities, like breathing, you will recognize comfort you have never imagined.
In The God of All Comfort Hannah Whiteall Smith describes how faith in God brings comfort into your life. We were not intended to carry burdens instead we are to give them to God. We often need reminders and encouragements to continue our Christian growth, this book is excellent help in doing so.