Naomi Campbell has admitted she is ''a work in progress''.

The 43-year-old supermodel is pleased with how she's grown as a person and insisted while she makes ''mistakes'' - she has several convictions of assault - she refuses to ''regret'' anything.

She told The Guardian newspaper: ''I'm a work in progress. But yes, I'm happy with the way I am now. I'm very observant and very instinctive.

''In life, you have to have the vulnerability to accept when you are to blame. And I do have that and I am open enough to say it.

''I've made mistakes. You know all that stuff, I'm not going over it again. And I admit to them, but I don't regret anything. I don't live in regret.''

While she described herself as ''loyal'', she admitted she can be ''bossy'' and extremely competitive.

She added: ''Am I bossy? Absolutely. I don't like to lose, and if I'm told no then I find another way to get my yes. But I'm a loyal person. And I'm generous and I don't bulls**t.''

Naomi insisted there is a mental strength needed to succeed in the fashion industry, and 'The Face' judge wants to teach young hopefuls the same sense of discipline.

She explained: ''You have to be able to take direction, you have to be always watching your composure, your attitude. But you have t be able to hold on to your own personality, too.

''That's the part you can't teach. On the show I tell my girls - this is a competition. You know what? You don't want to get so comfortable that you forget that, because you need to always be competing. You're not here to make friends.''