encouragement appreciated

I just joined my fitness pal or should say I just recently started using it. I am a breast cancer survivor as well as a survivor of an emotionally and physically abusive relationship. I left that and started a new life a few years ago and recently got married to the most fabulous man on the earth! I want to be happy and healthy for our new lives together. It is so hard to lose weight after chemo. Even though it was a few years ago, I'm still hanging on to the excess weight I gained during those months of not being physically active. Any words of wisdom Ladies??