You are not going to manage a medical degree if you don't really want to do it. You will struggle to get into a course, you will likely struggle with the workload if it isn't what you want to do, and you'll be at high risk of burnout.
It sounds like you should have a conversation with some kind of advisor at your school, and ask if they can help you talk to your parents. It may be that you compromise by doing some creative subjects with some sciences but there are options. But I really don't think it's a good idea to go into a really work intensive path when you don't want the result