As soon as you become aware that you are feeling any discomfort over another person's good fortune, let it serve as a cue to you to behave in the opposite extreme and actively express great joy. This will help you overcome any negative tendencies.
(see Rabbi Yosef Hurwitz of Nevardok - Madraigos Haadam - Birur Hamidos; Rabbi Pliskin's "Consulting the Wise")
Self-confidence allows you to create goals -- and reach them. It lets you learn from your failures -- and move on to triumphs. It helps you
transform your potential into real achievement. With the help of Rabbi Zelig Pliskin, you will gain that self-confidence.
Rabbi Zelig Pliskin is the author of 25 books with his specialty in mastering happiness and other positive inner resources.
His last 15 books include: "Taking Action", "Happiness", "Kindness", "Courage", "Serenity", "Building Your Self-image" "Conversations with
Yourself" and "Marriage." These books are available at: Artscroll.com.