Insecurity & Depression.

JE
Ever since I dated the last guy I dated, I've become so depressed & insecure with how I look and how my life is going career wise. He & I are obviously not talking any longer, but I still cannot shake the negative feelings that I have towards myself. It's almost as if it so much easier to wallow in my sadness.. I don't know why I allow myself to pity myself like this so much.. Is it out of mere laziness? How can I continue to push myself when I have such a strong barrier of doubt in place? How can I demolish it so that I can get back on track towards my goals?