I just finished reading "Women Who Love Too Much" by Robin Norwood, it was a definite eye opener and definitely me! Some good advice in the book too about how to slowly make yourself healthier, step by step.
It might be a good read for you too. Sometimes doing all these things and having all these suggestions can seem overwhelming, so maybe grab a copy of the book (
couple of quid on Ebay) and then work the steps at the back in your own time? Even if you don't work the steps, the book has some really good information that really helped me understand why I always go for blokes who can't give me what I want and the ones that can don't seem exciting enough.