For years, Sizemore struggled with addiction and faced ineligible turmoil, including respective arrests for cause possession. In 2010, the histrion appeared Celebrity Rehab with Dr. Drew with ex-girlfriend Heidi Fleiss, who helium was convicted of battering and harassing successful 2003. (He denied the charges, for which helium was fixed probation.)

Sizemore faced much ineligible occupation successful 2018, erstwhile a 26-year-old histrion from Utah sued Sizemore for alleged maltreatment of her erstwhile she was 11 years aged during accumulation of Born Killers. The histrion denied her accusation and the suit was aboriginal dismissed.

Sizemore has been unfastened astir his idiosyncratic struggles. "I've been trying to get sober since 1991," helium told Fox News successful 2021. "It became truly large quality overmuch aboriginal than that, but I was trying to stop. I've had a occupation for a agelong time. I had periods, agelong periods, of sobriety and I would extremity up relapsing."

He continued, "I inactive spell to meetings and enactment my steps, but I had reached a spot successful my beingness wherever I knew I had to stop. I couldn't beryllium arrogant anymore. If I wanted to scope a bully and pleasant aged age, I had to stop. And if I wanted to ticker my kids turn up, I needed to scope a spot wherever I knew it was over."

Amid his struggles, Sizemore continued his acting vocation with roles on TV shows specified arsenic Netflix's Karate Kid sequel series Cobra Kai, Showtime's 2017 revival of David Lynch's Twin Peaks and the comedy Barbee Rehab, which debuted successful 2022 and besides stars Bai Ling and Janice Dickinson. Prior to his death, helium worked on more than 2 dozen projects, mostly autarkic films specified arsenic the fearfulness flick Impuratus, acceptable for merchandise March 3.