Sytch learned her fate inside of a Volusia County courtroom on Monday morning ... three months after she pled no contest to, among other charges, one felony count of DUI causing death.

Sytch -- wearing an orange jumpsuit and shackles on her wrists -- addressed the courtroom for a few minutes during the hearing, which lasted several hours and featured testimonies from people affiliated with the case, including a medical expert who evaluated the former wrestling personality in the spring.

Sytch broke down in tears during her speech and apologized for her actions. At one point, the 50-year-old also turned to the victim's family and said, "I know my words are not enough but please know that I think about you every day."

When the judge ultimately sentenced her to 17 years in prison, Sytch appeared stoic -- before she was taken out of the courtroom by officials.

Sytch -- also known as "Sunny" in the ring -- has been locked behind bars since May 2022 ... after prosecutors claimed she drunkenly slammed her car into Julian Lasseter's, killing him during a horrific March 2022 crash in Florida.

According to authorities, Sytch barreled into Lasseter while he was stopped at a traffic light. They alleged that at the time of the wreck, she had a blood alcohol content of .08 or higher.

Sytch was hit with eight total charges over the incident ... and, at first, she pled not guilty to all of the charges, though she changed her pleas in August after reaching an agreement with prosecutors.

Following the plea deal, she had been facing a prison sentence of up to 25 years.

The judge also said during Tuesday's proceedings that Sytch will be required to serve 8 years of probation following her prison sentence ... and her driver's license has been permanently revoked.