Thanks for your replies and I am pleased to see that most of us are more confident as we mature!
@knickas, why are you judging yourself by your looks, when you obviously have so many talents? Gone or nearly gone are the days when tv programmes were hosted by men in mid to late middle age and co hosted by attractive young women young enough to be their granddaughters. Look at May and Merkel if you want role models, regardless of what you think of their politics. There are so many women in various spheres who are refusing to roll over, just because they are over 50 (and in their prime!). Yes, there is ageism, it is tolerated in a way that other forms of discrimination are not, but it is our duty to confront it, hold it up to the light, show how ridiculous it is, and smile!