"Binge Thinking" ... I like it! Definitely describes me, too.
I haven't really gotten into meditation although I know it's something that I want to do and I'm down with anything that helps.
Kelly McGonigal includes a chapter on meditation and breathing techniques in her book: "The Willpower Instinct".
To quote a summary:
“Both exercise and meditation lead to greater neuron density in the prefrontal cortex,” says Kelly McGonigal, a psychologist at Stanford University and author of the new book The Willpower Instinct. It’s in that region that executive skills such as impulse control and judgment live — making it a very good place to be adding neuronal connections.