You are a success because you know your limitations, and put the skills you've learned to good use and set boundaries for what you do and don't feel capable doing.
You are a success because when you need help from Dr. B, you seek it and are unafraid to. You are a success because you've chosen a competent professional to be on your team, and he has the knowledge to remind you of what to do to make your pain ease.
You are a success because you come here, where you have helped countless others over the years, and contribute to a community in both success and failure. A relationship isn't real if it's only based on "I'm doing well, everything's fine". You are brave enough and sincere enough to seek help from your community when you are wounded.
Fat, ugly, stupid and worthless are all just how you feel. Fat, ugly, stupid and worthless are all words that have no real "meaning", one persons fat is another persons skinny, one persons ugly is another persons gorgeous, someone can be smart about some things and not about others, and worthless depends on what you're looking for to BE full of worth.
YOU, in my eyes, are not fat, ugly, stupid or worthless. You are a brave, strong, elegant woman with a lovely smile and a lot to be proud of. It's OK to feel how you feel, and I'd never say not to feel a certain way, but you are absolutely not worthless at all. Think of all the people you've helped just through this website. You've helped ease other victims burdens.
I'm sorry if you feel it's a shame that you're living, but to a lot of people, I know it's a huge joy to have you in their lives. Be gentle with yourself, show yourself the mercy you show other people. Be as tender with Mary as you are with other posters.
You can beat this depression, just as you've done before. And if it comes back, you'll have one more time to remember that you've beat it, and learned new coping skills. Your depression offers you a new opportunity every time to re-learn your coping skills, and pay special attention to yourself and your well-being. You're doing the right thing to reach out to us, and to Dr. B. You can do this, Mary.