Most importantly, don't hesitate to see a psychologist! Do not hesitate to make an appointment with a psychologist. It is quite possible that you yourself a person smart enough, but one head is good, and two - better. And it will be more useful if the "second head" will belong not to your girlfriend, and a professional. That's what I heard on the health coach certification
. And to be honest it helped me a lot and I started walking! I advise you to do the same.