Active post-menopausal women unite!

Hi, all --
I am in my early 50s, and for the past six years I have really struggled against gaining weight. I am also much more prone to injury than I used to be, so exercise can be interrupted. I am the single mom of a son with special needs and have a demanding job. But I am determined to stay fit and active! And it would really be a boost to my self-confidence and energy if I could lose the 12 lbs. I have gained in recent years. I am looking for friends who are great motivators--I will support you back!
Thanks,
Ramblin Rosita