I’m sorry you’re going through a tough time at the moment and that your mum is not being supportive. Have you ever had therapy? Would this be a possibility. Or, what about a stuttering support group? There are ways to make speaking easier and to start to feel better about things in general. I can imagine it doesn’t feel that way at the moment. Often it takes a crisis like this to push you to make a change and take some positive steps. Feel free to message me if you want to talk about this in more depth.