John Mulaney came by The Late Show with Stephen Colbert for the first time since he went to rehab for drug use for the second time, after a twelve-person intervention by Seth Meyers, Fred Armisen and Nick Kroll, among others.

The comedian has been candid about his time in rehab, making the rounds on various late night shows over the years and in his latest comedy special Baby J, which premiered on Netflix in April. He shared that he will have marked three years of sobriety in December and thanked Colbert for helping him along his journey.

“You texted me once when I was going through a lot, and it meant a lot to me,” Mulaney told the host. “I don’t mean I was worried about what you thought of me, like you wouldn’t have compassion for someone in that situation, but your opinion means a lot to me. And when you reached out, it was extra special in a way.

When asked what he has learned from his time in rehab and his recovery since, Mulaney explained that he realized he is a genuinely happy person.

“I’ve put up several obstacles in my own way for some reason, which has left me quite raw, quite disoriented and quite unhappy at times, but at the core I’m a happy person,” the comedian said. “And it’s okay that I protect that by living the life I want to live. I’m very lucky. I have a very good life and I don’t want to be the reason for it to be complicated.”

Baby J includes bits about how the first time Mulaney went to rehab, he had 30 mg of Adderall with him, as well as a bag of Xanax, 3 grams of cocaine and $2,000 in cash. He also described the intervention as a ‘trick’ and ‘joke’, admitting he was still ‘pissed off with them’ but thanked the people involved.

“To be able to do this show and stand here – listen, I’m grateful to everyone for my intervention,” he said. “They intervened, confronted me and totally saved my life.”