Hey! I like to whine! I am Black Belt Whiner!

If I don't like things, I whine, I write sad peotries and paint gloomy sketches. And if somebody is dragged down I just say: "THAT IS MY VIEW!"
A little more seriously. Always tell people that you are grateful for attention even if you don't show it. That their presence helps even if you still seem at the bottom of the pit. Help them understand.
And regarding wether you are worth or not. Remember that depressed people are alway biased against them selves.
Good Luck