I found this book by Lucinda Bassett called "From Panic to Power" to be helpful. Although I realize now I haven't changed much since I read it. I guess it's cuz you gotta drill this new way of thinking into your brain and that's hard cuz if you're like me you've thought this horrible way all your life. In this book she talks about thought replacement, what-if thinking, all sorts of good advice I just need to keep practicing to change I guess.