If a parent is abusing alcohol, it can lead to stressful or harmful situations at home. Keeping your distance when they're intoxicated can protect you.
Do not speak unnecessarily in front of drunken parents, always be polite, getting angry and speaking loudly can be dangerous for you.
Engage yourself in learning something new, reading good books, exercising, learning a new skill, etc., ignoring the habits of alcoholic parents.
To remove the stress you are going through due to your parent's alcohol addiction and to calm your mind, take the help of meditation and yoga.
Do not give any kind of advice to your drunken parents as this may make them angry and may even thrash you, you can just request politely.
To get rid of the addiction of your alcoholic parents and to avoid their bad behaviour, take the opinion of an expert or a doctor.
Stop expecting your alcoholic parents to take care of you, you have to take care of your health, sleep, studies, food and most importantly your mind.
Spirituality will clear and calm your mind, protect you from bad company and bad habits, give you good direction, and most importantly; You will not become an alcoholic.
A parent's alcohol addiction can create an emotionally traumatic experience for the child. Take the advice of a doctor to get rid of the addiction to an alcoholic.