Johnny Manziel's journey back to the NFL has a long way to go and he knows that he can't afford any slip-ups.
The 25-year-old quarterback acknowledges that he was "extremely selfish" in his first run as a pro and continued to make mistakes after being released by the Cleveland Browns in March 2016. His workout at Thursday's pro day and his upcoming appearance in the Spring League are all part of Manziel's final opportunity to change public opinion.
"When I first got in the league, did I have some leeway? Sure I did, but I have exhausted all leeway and all second chances," Manziel told Bruce Feldman of Sports Illustrated. "This isn't the second chance. This is the 35th chance.
"This is the last of the last chances to show people that I've made a drastic change in my life, and it's for the better and I'm happy with where I'm at."
The former Heisman Trophy winner says he's had to cut certain friends out of his life and has been away from hard drugs for almost a year.
A huge part of Manziel's comeback attempt is his diagnosis of mental health issues, which includes a bipolar disorder that he's been taking medication for.
"(The medications are) supposed to keep you even-keel," said Manziel. "Sure, I do still drive in traffic and when someone cuts me off, I get pissed, but I'm able to take a deep breath.
"When I went to that mental health (clinic), I started dealing with different coping mechanisms to really help me not being so drastic in my actions all the time."
Manziel says he's patched things up with his father, who once said his son would be better off in jail, in part thanks to his new medication.