Welcome Karl to the Forum!
You are no good to your daughter and family if you don't look after your own health and are no longer around yourself!
It is a very good thing that you are doing something about this before the problem gets much bigger (literally)!
The Cohens Diet is a tough diet to follow. I wish you all the luck with it. Remember if things are getting too tough...we are here to help you along the way. There is a lot of practical wisdom floating around here ready to give you a few pointers that will make the journey easier and doable.
The big thing to keep in your head is that weight loss and healthy lifestyle living isn't just for a small time but it's a lifetime commitment.
Wishing that better future for you and yours!