For the first time in 11 years, David is living alone in the Los Angeles home he and Courteney own together.
Watch and see what David's life is like now.
To help with his recovery, David says he's been practicing yoga and meditation. "Through yoga, your feelings are right on the surface and sadness and pain and all of that have a new depth," he says. "I also do meditation two or three times a week. While I was going through all of this and losing my mind, meditation gives me peace."
One of the things David says he learned in rehab was how to deal with his anger, and his yoga instructor phrased it beautifully using a Buddhist quote: "Anger's like drinking poison and expecting the other person to die."
David says he tries to think of that quote when he gets angry now. "You're only killing yourself," he says. "That was huge for me, and it really hit home."