Trying to get back on track after fighting breast cancer for over a year

Hello all -
In September of 2013, I was diagnosed with breast cancer. I was at 117 pounds when this started and was at the gym a minimum of 3 to 4 days a week. After 3 surgeries and awful medication, I am now an official survivor but I am now up to 137 in just a year's time. : (
Today is a new day for me. I am eating right and back to logging my calories. I still can't do the extensive exercise I used to but I can walk and do light activity and start eating right. I think my awful eating habits were a little depression. I am just looking for support and encouragement right now. If I can battle breast cancer, I can certainly battle this weight right? Thanks to all and GO GET YOUR MAMMOGRAMS PLEASE!!!!!!!!