Elisa Kent was high on ice when she veered off a dangerous corner at Dixons Creek, northeast of Melbourne, in May 2018.

The car went flying into a gully and killed her passenger and best friend, 41-year-old Amber Hughes.

"It's all f***ed up. I'm all f***ed up on drugs," Kent told rescuers who arrived at the scene.

The best friends were on their way back from buying $2500 of ice and had both taken the drug when Kent crashed the car.

Ms Hughes was killed six months after her husband died, leaving the couple's seven-year-old daughter an orphan.

It was "gut-wrenching" to hear about the impact of the fatal crash on the victim's young daughter, Victorian County Court Judge Michael McInerney said.

"Each of Ms Hughes family and friends...have suffered a profound sense of needless loss at your hands," he told the driver.

Kent, now 54, admitted to culpable driving causing death and drug trafficking.

More than 16 grams of ice was found hidden in a "stash" in the car wreck which the woman planned to sell to support her addiction.

The ice addict wrote an apology letter to the family of her victim but they refused to read it.

Her remorse, guilty plea and mental health issues including post-traumatic stress were taken into account for her sentence.

"No sentence will satisfy the family ... Amber Hughes is unfortunately no longer to be with you and is lost forever, not only to you but to her daughter," Judge McInerney said.

He jailed Kent for nine years and nine months, but she must spend at least five years behind bars before she is eligible for parole.

Australian Associated Press