Britney Spears wants her father's conservatorship to come to an end.

The 31-year-old star – who was placed under conservatorship after a public meltdown in 2008 and has her financial, legal and professional dealings controlled by her father Jamie – believes that she is now in a better head space and can "regain control" of her life.

A source said: "Britney very much wants the conservatorship to end; she doesn't understand why it has gone on this long.

"Britney is now a judge on a national hit television show, which will be live when it airs this fall. Britney feels she is ready to regain control of her life now.

"Britney's dad, Jamie, has conservatorship of her personally and professionally, and this has been going on now for almost four-and-half years."

But while the Toxic singer feels ready to regain control of her life, her doctors disagree.

The source added: "Britney's doctors just don't feel she is ready for the conservatorship to end though, as she has a very complicated mental health diagnosis."

Although her doctors have their misgivings, Spears believes her new judging role will show she can "prove herself".

The source added to RadarOnline.com: "Brit is hopeful that once she proves herself on The X Factor this will be the impetus for the conservatorship to end.

"Brit could absolutely be in court at that time [in July]. The judge wants to make sure that Britney is handling the stress of her new job appropriately.

"The only person that can formally end the conservatorship though is the judge and she has to be convinced by her medical doctors, that it's the best thing to do.

"Britney is grateful to her dad for giving up his personal life to save her but she wants to stand on her own two feet now."

Her review hearing will take place on 21 July.