My eczema is making me depressed. is that possible?

Yes, just as we have: psycho-somatic disorders where the mind creates bodily problems, we also have somato-psychic disorders where a physical condition generates emotional issues such as depression or anxiety. Please work w/a dermatologist, nutritional consultant, and a mental health professional. That's a lot but the probability of success will increase that way. Peace and good health.

Yes: Skin disorders can impact emotions. See: http://www.netdoctor.co.uk/conditions/skin-and-hair/a3656/psychological-impact-of-skin-disease/