(Cover) - EN Showbiz - Beyonc Knowles has admitted she thought she would be retired by 30.

The 29-year-old R&B sensation will hit the milestone age this September, and still has so much more she wants to achieve in her career.

The star has confessed she never thought she would be so ambitious though, and originally planned to quit working early on in life.

This is really funny but when I was younger I thought Id be retired by 30, laughed the star in an interview with the British edition of Cosmopolitan.

Now Im nearly there I cant believe how much more I want to do.

The beautiful star shot to fame in the 90s as the lead singer of girl band Destinys Child. She has gone on to become one of the worlds most successful female solo artists, with albums such as 2008s I Am... Sasha Fierce earning her numerous Grammy Awards. She has also launched a movie career, with roles in films such as 2006 box-office smash Dreamgirls proving just how multi-talented she is.

I never imagined Id have as much success as Ive had. I thought it would be great just to get a record out, she smiled.

I never imagined the extent of what Ive achieved. I never imagined the awards, the movies... I still cant believe it. Im grateful for all of it and dont take it for granted. When I do something, I try and do it as well as I can.

In addition to her performing abilities, the songstress is fascinated by the human mind, and revealed that if she hadnt succeeded in showbiz she would have loved to explore that interest in more depth.

When asked what she would have been if she wasnt a singer, the star replied; a psychiatrist. (C) Cover Media