Hi, Vanja1!
As Rainbow Brite says, it's good that you know your personal health issues and it's important that you keep monitoring them with your doctor. I think you are smart to be concerned and want to know what to expect in the future.
I am 51 and definitely in menopause right now. I would love to live to be 100, too!

That would mean I am only halfway through my life. So far, most of my menopausal symptoms have been pretty much the same as my non PCOS friends.
As far as growing older with PCOS, at this point in my life, I am more concerned about my family's history of heart disease, although I realize that PCOS can play into that, too. This is why my main suggestion to you would be to EXERCISE, if you aren't already doing it, now.
I was a couch potato for most of my life and HATED exercise, but took up walking in my 40's and then weight work at the gym and my bicycling. I wish I would have gotten serious about exercising sooner. It has truly made me feel so much better and far more able to cope with growing older. I truly enjoy exercising, now!
I don't have osteoporosis (not that I know of anyway), so you might check with your doctor as far as the intensity and impact of exercise. I try to do weight bearing exercises (treadmill and free weights and some machines) at the gym and then ride my bike on the other days for cardio and just because I love it so.
I hope I don't sound too "preachy" here. Exercising has not given me the "perfect" body and I may never lose all this stubborn weight. However, exercising has made me feel stronger, physically and mentally, so in that way I feel it has great benefits.
I sometimes worry about the future, too, but, making exercise a priority in my life makes me feel a little better in control of it and better able to face the future.
Best wishes to you,

Kathryn