Stay "present" and things can be easier. When we wander back to memories or forward into the unknown future we can get in all sorts of negative stuff, anywhere our imagination wants to go! Stay with what is. What do you want now? Find some little thing that would comfort and go "get" it. Then work on the next thing. It's the enjoyment of creating that feels good, not comparing the finished picture with the Sistine and what Michelangelo painted! There's no way your body "should" look; it is what it is at the moment and it's working hard so you can breathe, move, create, imagine, feel, see, hear, touch, etc. It's a wonderful body. Think how well you'd do if you were turned into a body and had to cope with how we treat it? Do you like when others call you names and "hate" you? Do you put down other people? Then how can you do that to yourself?