By Jessica SagerOriginal Source: nypost.comIt wasn’t easy for Johnny Manziel to get sober.The former Browns quarterback has credited wife Bre Tiesi with keeping him in line, and the model confessed she was as anxious as she was excited for his Canadian comeback in light of his struggles with bipolar disorder and substance abuse.“You can’t help but be nervous,” Tiesi, 26, told TMZ Sports before Manziel’s CFL debut for the Montreal Alouettes on Friday night. “But I’m really excited. I mean, there’s a lot of things that he went through, and it was such a struggle for a long time. It was just one of those things where it’s like, ‘Are we ever gonna get out of this?’ Like, ‘Are you gonna pull it together? Are you gonna figure out what’s wrong?’ ”The Heisman winner told “Good Morning America” in February that he self-medicated for his mental illness with alcohol, which he blames for his downward spiral and legal troubles, including...click here to continue reading