Sounds like it hit the paper and not the yarn. If that's the case yikes but not the worst thing that could happen.

If it hit the yarn I hope she sews the ends in as she goes or that will be an experience as she weaves them in to be able to wash it.

Ask her to take you. Take ownership of your health and well-being and ask her to help you.

Your mom is reeling right now. She knows you need help, she's afraid of what will happen if you don’t get it. She took a big step and admitted there is something wrong with her child and it is more then she can fix herself. Instead of getting you the help you need you pushed her away. You pushed her away by showing her how worthless you found life. Which was probably showing her things were worse then she was ready to believe. Give her hope that you want help and she will be there