Hi Sydney and welcome.
I guess I'm also trying to reinvent myself here as I left a 25 year marriage 4 years ago...so I can totally empathize with your situation....though ooh, I'm jealous of the 17 grandchildren...that's so wonderful. I'm hoping for one here soon, as my oldest son is getting married in August. I would LOVE to be a grandmother.
In fact...losing weight for his wedding was my biggest motivator....and I gave myself plenty of time, since I started over 6 months ago and am about 2/3rds of the way to goal.
You CAN do this, believe me. We ALL can do this.
deena