OCD & Self-Confidence

Were you aware that when you suffer from OCD, anxiety & an eating-disorder... it's REALLY hard to have a high level of Self-Confidence & Self-Esteem?????? I was told, this week, that I need to work on my self-confidence... by the same person who told me that anxiety & depression are "all in the mind". I am frustrated... and kinda angry and hurt... no one seems to understand. I feel so alone in this situation. I would love to be more confident, but where do I start? My body image sucks, I feel fat & ugly, I am angry & hurt, I feel betrayed & misunderstood... I don't know where to start...