Talk to your parents about how much this is impacting your life. Don't let them think that this is something that can be fixed overnight, because it's not. If your parents still aren't understanding, I suggest that you look more into proper speaking techniques online. Also, try and find out what is causing you to stutter. It can maybe be your breathing, tongue placement, or the straining of a muscle around your mouth or throat. I hope this helps! Please let me know if you have any more questions!