For weeks, the pop sensation has been begging with a Los Angeles judge to release her from a years-long conservatorship overseen mostly by her father, Jamie, which has sparked international attention in her case.
Recently she took to Instagram in a new, public demonstration of her anger.
"I'm not gonna be performing on any stages anytime soon with my dad handling what I wear, say, do, or think," she wrote.
Instead of performing on a stage in Las Vegas, she plans to release her own dancing videos "from my living room."
Spears, who rose to stardom in her teens, had a public meltdown in 2007 when she attacked a paparazzo's car at a petrol station.
The following year, a California court granted her a one-of-a-kind legal guardianship, with her father as the primary supervisor.
After that, Spears quickly returned to performing, releasing three albums, appearing on several television shows, and even taking up the Las Vegas residency she mentioned in the Instagram post.
However, she abruptly stated in January 2019 that she would be postponing her performances until further notice.
The singer then made an impassioned plea for her circumstances to improve last month, stating that she was denied the removal of a contraceptive IUD despite her desire for additional children and was forced to take medication that made her feel "drunk."
Under threat of a lawsuit, Spears said she was forced to do shows and was not even permitted to change in private or drive her own car.
"My so-called support system hurt me deeply !!!! This conservatorship killed my dreams ... so all I have is hope and hope is the only thing in this world that is very hard to kill ... yet people still try !!!!" she wrote Saturday.
Spears also alluded to previous documentaries about her struggle, which have contributed to a reckoning about the entertainment industry's handling of young, female pop artists.
"I didn't like the way the documentaries bring up humiliating moments from the past ... I'm way past all that and have been for a long time!" she wrote.
Spears won a huge legal victory on Wednesday when a judge determined that she may choose her own lawyer.
The lawyer appointed by a court following her breakdown, as well as the financial management firm that was set to acquire joint custody of her inheritance with her father, had asked to resign.
Larry Rudolph, Spears' longtime manager, has also resigned.
Her father, on the other hand, has indicated that he will not resign voluntarily.
From fans yelling outside the courtroom to her musical peers Christina Aguilera and Madonna to the big #FreeBritney movement on social media, Spears has a lot of public support.