Help your parents help you.
When my dad and I were working towards recovery together we had many fights about me harming. He couldn’t understand how I was feeling and in turn I couldn’t understand how he was feeling. He helped me to understand how he was feeling and so I had to help him understand how I was feeling. Because he had never suffered from self-harm he was not able to understand and after a while I began to accept that. He did not know how to help me and so it was my job to help him to help me. To do this I had to explain to him why I was self-harming even if he wasn’t able to understand it I had to tell him why so that we were able to talk about things. Once we were able to talk about self-harming we began to talk more. He moved on and learned not to not get angry and annoyed at me for harming but he showed me how upset it made him, he showed me that he cared and he showed me that he wanted to help me. That was enough for me to be able to decide that I needed to help him to know how to help me. ...