For me, I had to pull together a complete program and plan. First step was meeting with a dietician. 30% each - protein, carb, fat at a calorie level that would allow weight loss. Really hard! Next I added activity. The Live Strong program was a big help for me. I learned that no matter age, health issues, weight it was very possible to increase strength and endurance. Eventually I started classes at a park rec program included strength and cardio (2 classes twice a week). I eventually add walking. Final piece was working with my pcp and chemo doctor to find a medication that would allow better appetite control and weight loss as on Anastrazole losing weight is almost impossible. This program is 4 years in the making so far. I am 30 pounds less than when I was diagnosed with breast cancer. I am strong and mobile and have incredible endurance. But it is work and will have to be constant. But well worth it. Hth