Jim Parsons recently said on the “All Out with Jon Dean” podcast (via People) that he was “miserable” during the height of his long-running TBS sitcom “The Big Bang Theory.”

“I look back now and realize there were many ways in which, in some of the best moments of my life, I was miserable,” Parsons said. “I wasn’t happy. I was stressed.”

He added: “I felt like there were so many plates that I was supposed to hold up in the air and that the success and the good things in life that were happening were just because of this overwork…discipline and whatever. Maybe to some extent that was true. I don’t know. I can’t say because that’s who I was.”

Despite the overwhelming success of “The Big Bang Theory,” Parsons said he wouldn’t revive it “for any amount of money.” He went on to acknowledge that the role is “not going away,” but since the show ended in 2019, it has been “changing my relationship with it.”

“It’s evolving and getting better all the time. What I feel is better, what I feel is healthier. It’s not something anyone probably thinks about, but I certainly wasn’t prepared to do it, looking back,” Parsons explained.

“The Big Bang Theory” ran for 279 episodes from 2007 to 2019 and followed the misadventures of a group of socially awkward science geeks and their much cooler neighbors. Parsons starred alongside Johnny Galecki, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Melissa Rauch and Mayim Bialik. The show earned 10 Emmy Awards during its run, including four awards for Best Lead Actor in a Comedy for Parsons.