You are not alone. I think this is probably a common feeling in depression, and it's a horrible one to have. Unfortunately, I don't have anything I could tell you that'd make you feel magically better. :/ I wish I did!

I think this is because everyone is different, and different people need different things in their lives to make them feel whole and good.
I hope you find the things in your life that make you feel whole and good, and I hope you'll keep posting here whenever you feel the need to.