Thank you all for the warm welcome, and the good advice. This time I will definitely just camp out at step 3 (when I get back there) and not worry about giving up the sugar in any hurry. It's hard for me to believe there will ever be a time when I won't want/need it so much, but I'll try to trust the process this time. As Allison pointed out, I'm sure I will feel better doing step 3 longterm than no steps at all. Even if I NEVER got any further.
Lea, I'm so sorry about the breast cancer; that is very hard. If I don't start to feel better soon, maybe I'll reconsider antidepressants. Good to know they are helping you. I've watched my mother jump from one to another for years and it's never really seemed to help, so I haven't got a lot of faith in them, though rationally I know they do help many people. And I worry about side effects. I have a bit of a hangup about doing things naturally, but I shouldnt let that prejudice keep me close-minded.