United Kingdom, Aug. 19 -- Noah Centineo is "back on the wagon" with his sobriety.

The 30-year-old actor revealed in 2018 he was sober but two years later admitted he was no longer completely clean, and while he is "on the straight and narrow" when working, he has struggled during his down time so has quit the booze again after realising just how "terrible" social drinking makes him feel.

He said on the Happy Sad Confused podcast: "When I'm working, I try to be really really on the straight and narrow. There's a huge responsibility on these projects, and I take them seriously.

"My problem is if I have a couple days or weeks between the projects where I go home and I'm with my family, and I'm like, 'I want to drink a bottle of wine with...