Celebrating the downfall of others?

When I was a teenager I used to write short film screenplays. I'd scipt swap with this women who wasn't the nicest person but she wanted to read them so I sent them.

One day out of the blue she randomly went on one of my posts and said I sounded stupid. Several users stepped in and she was basically forced to apologize to me.

Eventually she told me to stop sending scipts because I was wasting her time and wasn't improving.

Years later, I managed to get one award and several scipt requests from Hollywood and Nollywood. Unfortunately for her she was removed from the platform and based on her history never had a successful career.


I know I shouldn't rejoice or be happy that others have failed but I was happy that she failed- too happy. In fact I hope she's never successful and I can rub it in her face one day if I get lucky and get something made.

I know this is harsh and cold hearted and I've never been the type of person to celebrate when people fail/ mock/ call people names but slowly I'm starting to care less and less about others since I was a really nice person in the past but I was bullied by everyone. Even my cat used to bully me.

Am I wrong? If so, how can I change?