Hello, it's nice to talk with you again!
Here are some books that may help:
Stress and Relaxation
10 Simple Solutions to Stress: How to Tame Tension and Start Enjoying Your Life by Claire Michaels Wheeler
The 10 Best-Ever Anxiety Management Techniques: Understanding How Your Brain Makes You Anxious and What You Can Do to Change It by Margaret Wehrenberg
The Worry Solution: The Guided Experiences CD Set by Martin Rossman and Andrew Weil
Effective Life Skills -- Songs of the Sea, CD, (Guided Imagery and Meditations from the Seashore For Stress Reduction and Progressive Relaxation) (Calms Body & Mind to Cope with Stress, Depression, Worry & Anxiety; Relaxation & Stress Management/Reduction) by Catherine L. Bourne MSW (2004)- this should be helpful, combining the sounds of waves with a therapists guided relaxation.
Little Ways to Keep Calm and Carry On: Twenty Lessons for Managing Worry, Anxiety, and Fear by Mark A. Reinecke
SOS Help for Emotions: Managing Anxiety, Anger, and Depression by Lynn Clark
Worry by Edward M. Hallowell
The Worry Cure: Seven Steps to Stop Worry from Stopping You by Robert L. Leahy
Quiet Your Mind: An Easy-to-Use Guide to Ending Chronic Worry and Negative Thoughts and Living a Calmer Life by John Selby
How to Stop Worrying and Start Living by Dale Carnegie
The Self-Esteem Companion: Simple Exercises to Help You Challenge Your Inner Critic and Celebrate Your Personal Strengths by Matthew McKay Ph.D., Patrick Fanning, Carole Honeychurch and Catharine Sutker
Ten Days to Self-Esteem by David D. Burns
Learning to Love Yourself: Finding Your Self-Worth by Sharon Wegscheider-Cruse
Self-Esteem Affirmations by Louise L. Hay
High Self-Esteem and Unshakable Confidence: The Science of Feeling Great! (Made for Success Collection) by Larry Iverson, Zig Ziglar, Bob Proctor and Laura Stack
Emotional Freedom: Liberate Yourself from Negative Emotions and Transform Your Life by Judith Orloff
The Positive Power of Negative Thinking: Using Defensive Pessimism to Harness Anxiety and Perform at Your Peak by Julie Norem and Julie K. Norem
What to Say When you Talk To Yourself by Shad Helmstetter
You Can't Afford the Luxury of a Negative Thought (The Life 101 Series) by Peter McWilliams
Changing your thoughts and learning ways to relax will help you cope with the night supervisor.
I hope this is helpful,