Welcome! It's hard to know exactly how to help, because I don't know you. But, given your post, you may benefit from being evaluated by a speech pathologist for stuttering. Talking with a professional about your concerns may help you figure out how to manage the changes in your home life and in your social life. It might be worth having a direct conversation with your parents about your speech, explain your concerns, explain your friends have noticed changes and ask them to seek out therapy in the schools.