Do you have any hope that you will be happy some day?
I always thought that I was hopeless and my mother assured me that I was indeed hopeless.
I have found that if you hang in there, never give up on finding the right combination of meds, listen to your doctor and/or therapist and read everything you can get your hands on about depression/anxiety/bipolar disorder or any other disorder that you are suffering from you can have hope. I do these things with the glaring exception of eating right and exercising.
What do you feel about the hopelessness that comes with depression?