But Spears also offers new detail, explaining that she started to push against the constraints of the conservatorship around the time she released her last album, 2016's Glory.
"For some reason, I started to get a spark back. I started making Glory, and I got the fire back in my eyes. I started getting more confidence, and with confidence, people were like 'What's going on now, she's speaking up a little more.
"I think with confidence comes enlightenment, which makes you think better. That's the last thing they wanted," she said.
"I had to just play this role, that everything was OK all the time. I knew they could hurt me."
She describes being 30 years old, living "under my dad's rules", and looking to the rest of her family and wondering how they were going along with it.
Spears claims she was sent away to a mental health facility against her will in 2019 as a punishment for voicing her opinions during rehearsals for her cancelled Vegas residency Domination.
"I didn't want to ever go there. I remember calling my dad on the phone crying, and he said 'You have to listen to the doctors. I can't help you now.'"
She says she hated her time in the facility and it made her briefly stop believing in god.
"How did they get away with it, and what the f**k did I do to deserve that?" she asks.
Spears says she then started to become aware of the #FreeBritney campaign, as fans demanded more transparency about her conservatorship.
She says she eventually stopped contacting her father, got a lawyer of her own through a "wonderful friend" and started the process of trying to extricate herself from the conservatorship, which she did successfully last year.
"They literally killed me. They threw me away. My family threw me away," she says.
"I was a machine. It was insane how hard I worked."
Spears finishes the YouTube video by reiterating that she's had "lots of offers" for lucrative interviews to share her story, but she's not interested.
"For me, it's beyond a sit-down interview," she says.
"I'm sharing this because I want people to know, I'm only human. I do feel victimised - and how can I mend this if I don't talk about it?"
"I have an amazing song right now with one of the most brilliant men of our time, and I'm so grateful. But if you're a weird, introvert oddball like me, who feels alone a lot of the time, and you needed to hear a story like mine today to know that you're not alone, know this: My life has been far from easy, and you're not alone."
