Host and campaigner Katie Piper told the audience at Hay Festival in Wales: “Aging can be compared with bereavement”.

The former model has undergone hundreds of surgeries to repair her face and vision after an attack on her ex-boyfriend’s order, which happened when she was 24 in 2008.

Piper’s latest book was published Friday, titled “Still Beautiful: About Age, Beauty and Owning Your Space.

"Female age from male eyes. I tore off male eyes when I was 24. Not only did I become invisible. I became the target of people who say derogatory terms."

She expanded her description of aging like bereavement: “Sometimes we know we are losing someone or something, which is slow, gradually, as it ages, we look down at our hands and we see them look different.

“We grabbed ourselves in the store windows and everything changed.

Piper is also the host of the BBC show "Praise and the Loose Women of ITV". Said she was recently asked if the writers thought about whether they mentioned her age.

"It's shocking, but no surprise. It's because I was reminded at such a young age that when a woman was considered beautiful or young, the currency and power she had, and now, I'm going through the second stage of youth, feeling myself again, feeling myself putting on the judgment and label of my society."

She said: “I want to write this book…I really tell people where I find myself, not just when I’m no longer considered beautiful, but when I’m told I’m losing power because I’m no longer a young woman.

“I’m not the most beautiful of my peers, I’m not the youngest, but I’m one of the most powerful.”

"What if aging is the magical key to giving up other people's expectations and really starting to live," Piper wrote in the book.

She told the audience: "This allows you to control your own destiny. It scares some people because if we no longer have the confidence, what would they sell us if we no longer pursue unpaid things? What too high cream, diet, diet and eating habits, will we spend money?

"We are really charming young people. We talk about our 20s, (like) your life, the best years. OK, my 20s are very different because I'm in the hospital, but your average 20s are actually the time to make mistakes, and it's the most financially unsafe time you're financially... You don't have the least experience, you don't actually have much confidence. You don't really have that much confidence."

She said she felt positive about getting older.

“I will be 42 in October. I’m still very young for many people and it’s past for some. You realize, ‘I know who I am.’ I have a strong self and identity. It’s the height of my life.

Piper directs the victims of acid attacks through the Katie Piper Foundation, who tells two stories in the face of discrimination.

In one incident, some men blew her van when they saw her from behind, but threw a sandwich at her when they saw her face (she was wearing a plastic mask at the time), another time, walked out in a London restaurant for the first time and asked her to pick up a label that was over £700.

But she said: "In general, you need to realize that people are really good. Seventeen years ago, when I did the first cutting-edge documentary (Katie from Channel 4: My Beautiful Face), what it did, and it started me up the good side of my society. Until that point, I saw the true evil of humanity, but only in two people (her attacker) (her attacker).

If she had to send a message to her young self, she said, “If you feel like you are more than…you hate yourself or feel ashamed of it, it’s never you. That’s social, consumerism and capitalism. The good thing for someone (somewhere) is that it’s good for you.

"Whether it's a relationship, a company or a brand, it's not you. You're always as good as you used to, and you will always."