Hiding behind Hubby 2006

Just as soft and out of shape as I can be. My blood pressure was high and my knees replaced in 05. Now I needed fluid taken off the new knees. Hubby just learned to cope with all my issues and loved me through them. Not happy to be 56 and unable to get in and out of our pedal boat on the pond. I kept trying new diets and not getting any real weight off. Needing to make a life change but no idea where to turn. Feeling like I had to do something.