Your parents aren't being mean, we're trying to teach you life skills. Cooking dinner because Mom/Dad are tired that night? Life skill. Chores? Life skill. Paying Mom/Dad for that phone bill when you get your first job? Budgeting... life skill. Learn it and embrace it.
2. Pick your roommate(s) wisely. A friend of 20 years will still eff you over.
3. And this is the biggy.... remember the difference between WANT and NEED. You NEED a roof, you don't need 7 bedrooms. You NEED dishes, they can come from Goodwill. You NEED a bed, it doesn't have to be a sleep number right now. Get what you need not just what you WANT. WANTS can come slowly. Needs are right now. You don't NEED a TV. You don't NEED an Xbox / PS5. You don't NEED the loudest stereo system. You don't NEED matching everything and the best furniture right now.