The 51-year-old rapper previously said that a near-fatal drug overdose in 2007 was a wake-up call that motivated him to get sober Axelle/Bauer-Griffin/FilmMagic Eminem in Hollywood in January 2020Eminem is celebrating another year of sobriety. On Saturday, April 20, the “Lose Yourself” rapper, 51, marked 16 years sober, sharing the milestone on Instagram with fans. The Grammy winner — who was born Marshall Mathers — posted a photo of his hand holding a new chip commemorating the achievement.The comments section of the captionless post was filled with messages of support and congratulations for the rapper. “We’re all proud of you for being 16 years sober 💪,”…