My father and stepmom moved away from me a couple days after HS graduation. I was 17. Father got a big promotion and he'd stayed a couple extra months only to simplify my life. I had a job so it made more sense for me to stay in town for the Summer before college started in the Fall.
In the 8yrs of college that followed, I moved on average every 6 months.
Lessons learned.
Go easy on $$. One can live on not much money if you try hard, but if you start spending too much, you'll be screwed. You don't need a nice place to live in, you need a place that you can easily afford. But you also can't spend a bunch of time each day commuting, because time is very precious.
Try hard not to own any more possessions that you can pack into 2 trips in your car.
I should have gotten more sleep. The combo of a brutal homework load, the need to work, and me chasing after hobbies meant that I rarely got more than 5hrs sleep/night. I did not understand that the lack of sleep was making school harder than it needed to be. 6hrs sleep/night would have been better for my memory retention.
Be a nicer person. Now that I'm older and less of a dumbass, I really regret the stupid things that came out of my mouth.
Be a neat person. Once you move away from your folks, being a slob is a complete nogo. Whether or not you have a roommate, be neat.
Either learn self discipline, or you're screwed. No longer is there anyone prodding you to do what you need to do. You've got to find it in yourself to put out the effort necessary to succeed.
TV is a complete waste of time. There will always be things that need doing. See above re. self discipline.
It's a big change between 1 roommate and 2. When there are 2 in the house, the responsibility for everything is always clear. If your chicken disappears from the fridge, you know who did it. This clear relationship brings out the best in everyone, so everything works better. But with 3 in the house, this dynamic breaks down. Now responsibility is more diffuse. No one is sure who did what, who left the bathroom a mess, who failed to take out the garbage, who ate the chicken, this really brings out the worst in folks. 2 in the house works 10x better than 3 in the house.
We have 3 boys. Whenever 2 of them are together, any 2, they get along fine. When all 3 are together, it's constant war. Welcome to humanity.
Getting out of your folk's house will be a total blast. It will be hard work, sure, but still a total blast. Just don't be a slug.
Books @ Amazon "If only he had used his genius for niceness, instead of Evil." M. Smart