Sounds like we all feel the same - once you’re through the menopause and not producing collagen I think the sagging and lines are inevitable. Looking after our twin granddaughters (living with us for 4 days a week) from 9 months- 5 years, definitely aged my husband and me. I try to keep fit and look after my skin but the most depressing aspect is that the person in the mirror looks sadder and older than I feel inside ... However, I console myself that however old we feel we look these days, our mothers looked like this when they were only 50! Our expectations are maybe too high? Remember, your grandchildren don’t expect you to look young - they love you for being their granny!