(Cover) - EN Showbiz - January Jones has revealed that she wants "the fairytale" ending.

The actress says that to her, success means being happy in life, an attitude her father taught her.

But the Mad Men star admitted that she doesn't always find it easy to feel completely content.

"Success for me is to feel happy 80 per cent of the time," she told British newspaper The Independent. "That's been my goal in life. I think that comes from my father. He's a very optimistic, happy person. I'm not quite sure if I'll ever feel this, but I want to know how to be happy."

The gorgeous blonde, who is currently promoting her new movie X-Men: First Class, shared the things that make her happy.

But she also said that her ambition to better her life can sometimes have the opposite effect and leave her wanting for more.

"I'm happy when at work. I'm happy when I'm with my family or my dog," she said. "But, you know, there's always that feeling of, I'm not satisfied. I have that thing in my stomach where I just need to keep striving for things. In my mind, I want the fairy tale." (C) Cover Media