Britney Spears is angry. Very, very angry.

“The Woman in Me,” the singer’s new memoir, is about more than just venting, of course. She offers detailed, cogent accounts of indignities that would leave anyone seething. But Spears has clearly packed away a lot of frustration over the course of her 41 years — particularly toward the people who enabled her conservatorship, including much of her family, and toward the swarms of paparazzi who badgered her nonstop.

And don’t get her started on Justin Timberlake. Not right now. But soon.

The book tracks Spears’ life from childhood to the not-quite-present — it ends before her brief marriage to Sam Asghari did — and it kicks off with a litany of relatives who showed signs of mental illness or alcoholism. Spears’ past is full of givers and receivers of abuse, including her grandma Jean, who in 1966 fatally shot herself with a shotgun on the grave of the son she lost three days after he was born. Jean was only 31.

In short, Spears didn’t have a blueprint for a normal life, and a normal life is far from the one she has led since becoming a pop phenomenon.

“I liked to drink, but it was never out of control,” Spears writes, even as she tells stories about drinking with her mother when she was 12 and later partying with the likes of Paris Hilton and Lindsay Lohan.

She did plan a trip to Las Vegas with some tour friends in 2003, and says, “I was this little girl who had worked so much, and then all of a sudden the schedule was blank for a few days, and so: Hello, alcohol!” That’s when — apparently wasted — she married childhood pal Jason Alexander for 55 whole hours.

“Do you want to know my drug of choice?,” Spears asks. “The only thing I really did except for drinking? Adderall, the amphetamine that’s given to kids for ADHD. Adderall made me high, yes, but what I found far more appealing was that it gave me a few hours of feeling less depressed. It was the only thing that worked for me as an antidepressant, and I really felt like I needed one of those.”

Spears says she started taking Prozac in 2000 and had envelopes full of medicine handed to her while she was under the conservatorship, but never reveals what she is or isn’t taking at present.

But! She admits she smokes Virginia Slims. Smokes, present tense. Don’t tell the kids.