Breezy~Day-
You matter. I am so sorry you are feeling so worthles and depressed. It is good you are posting about it here.
Have you tried therapy? Perhaps that would be helpful. Sometimes focussing on spiritual things can help as well. I suggest visiting the library and checking out self help books. Titles such as The Six Pillars of Self Esteem, How to Win Friends and Influence People, The Power of Now, Rich Dad Poor Dad, As a Man Thinketh, The Power of Positive Thinking, and What to Say When You Talk to Yourself. There may be books on how to deal with childhood emotional neglect as well. Knowledge is power. Also, don't forget to exercise, enjoy some sunshine and "stop to smell the roses"--it will help you with your depression.