It's tough to picture Kobe Bryant second-guessing the decision he made to go to the NBA now, but during his rookie season, when he'd sit for long stretches and often not see the court, there were moments of regret.

Bryant, in his Showtime documentary "Kobe Bryant's Muse" details how he used to wrestle with the possibility that he'd made a mistake by leaving high school for the NBA.

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"I knew I could play with these guys," Bryant said, as clips of Allen Iverson and Ray Allen flashed. "I knew I could compete with them, but I wasn’t getting the opportunity to show it.

"One of the things that I always used to do is get in my car and drive aroudn the campus of UCLA. I’d see kids hanging out at fraternity houses, walking around and i just wanetd to feel that. And then I’d even wonder, 'F—, did I make the wrong choice? Did I f— up?' I could be going to college and laughing and hanging out with these kids and having a good time and enjoying it but no, here I am."

A great source of debate has been where Bryant would've attended college. It was a long believed that Bryant would've attended Duke, but in a 2013 interview, Bryant said he actually would've leaned toward North Carolina because of Vince Carter.

"Kobe Bryant's Muse" airs Saturday at 9 p.m. ET on Showtime.