Why no one believes I'm never been on a basketball team?

I used to been on the basketball team at my old school as a point guard and then I had a leg injury. So at my new school, I told people I was a point guard at my old school and they believed it. Throughout the school year at gym, people would try and sneak a peek at me free throwing, dribbling, and running to see I wasn't lying. And they don't believe it at all, so this bully at my school start telling me if I can throw the ball between legs as a joke. Then, he started to tell everyone down the table that I used to be a point guard and no one believed me at all. They said there's no way or that I'm fat and slow to be one. And this very atlethic kid say that there is no way because I'm not fit, I miss every shot, and run slowly. He claim the boys from where I'm from are good players but I'm not. I never felt so hurt because I called these people my friends and they went and talk shit about me. I tried to commit suicide because every single day this bully would try everything to ruin me.
Why no one believes I'm never been on a basketball team?
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