Playing victim doesn't change your actions- taking down the artwork that's stolen and learning from your mistakes will. Most people that have told you to take down the art aren't adults; they're teenagers. Also, if you're having suicidal thoughts or being bullied at school, I'd seek help from a trusted adult or a hotline immediately. I'm sorry you're having these issues but it doesn't give you an excuse to steal art and call it inspiration and play victim afterward.
The suicide help hotline in the US is 1-800-273-8255. There are also chat options available.