We have spoken of this many times. It is so important. Have a list where you can go if things are not going well at home. A friend, a relative, a neighbor? Be prepared. And remember you can always go to an Al-anon or an Ala-teen meeting. Very important leave a note pinned to your pillow letting your family know where you are.
Know others with the same problem as yours then talk to them. Make sensible plans together. Perhaps join an outing club. See if some of your local church members will let you join them in their homes. Also remember just because you may be disgusted with your parent or family for drinking and you have made a vow that you will not be like that does not mean that you should use a substitute such as marijuana or other non-related alcohol drugs. A drug is a drug. Think this through carefully. If need be discuss it with a counselor. Go to https://www.npr.org/templates/story/story.php?storyId=141164708 for info on how our brain does not attain full maturity until age 25.
Be good to yourself. Guard your health. Let your brain mature unimpaired by alcohol or drugs.