After her divorce, when she was in her 30s, Tatum's drug use progressed to heroin. However, when her 7-year-old daughter walked into her bedroom and found a syringe, Tatum says she had hit "rock bottom."
"That's what happens when you're in the disease of addiction," says Tatum. "That's when you know that you need help and that's when I called John [McEnroe], and I said, 'You need to take the kids, and I need to get help.' … And it wasn't the first treatment and I went to many more after that."
Tatum says becoming sober was a struggle filled with guilt. "[I had] lots of conversations with [my daughter] and lots of heartaches and lots of shame and lots of regret. I think it's really hard for mothers to get sober and to get clean. It's very hard for us because we have a lot of shame. We have a lot of maternal guilt."