You will find plenty of encouragement and good info here among the sistahs of TE.

I can't imagine where I'd be today (mentally or physically) if I had not gotten on the bike in Feb of '05. My marriage was deteriorating rapidly, I had 2 teenagers at home and a very busy job. I was stressed to the max, discovered cycling, and found my outlet; hey, endorphins, welcome back!!!

Cycling, and my cycling buddies (men and women), got me through a divorce and the raising of those teenagers (1 still at home, doing great, the other now a sophomore in college in CT). In addition to the fitness, the pure social fun of it, and the self-confidence it brings, is just unbeatable. There are plenty of us 50-plus gals out on the road, all shapes and sizes. Go find some!
Best of luck to you, and keep checking in! Lots of cheerleaders here...