Need to lose weight

Hi I'm Julie. I'm 63 years old and found out yesterday I weigh almost 200. I have never weighed this much. I was diagnosed with Lupus and fibromyalgia 4 years ago. I'm pretty sure the meds a d reduced activity are my problem. I'm determined to get some of this weight off otherwise my health will just continue to deteriorate. It would be nice to have some friends to keep each other on track through this journey.