Look up money saving tips. There are hundreds of threads for this.

Do your dishes while you wait for food to cook, then wash your dish right after. It's a big time saver.

When you party, don't feel pressured to get drunk quickly to catch up. Student party's tend to last until like 10pm because nobody can pace themselves and will get wasted.

Going out to bars is a massive expense, house party's are cheaper. But you pay for it in cleaning and damages. So party at your friends instead.

It makes life x10 times better if you get along with your room mates. But you don't have to be best friends if you don't click.

Being on bad terms with them leads to a toxic existence, since you are around them all the time.

Don't lend money with the expectation you will get it back. Ever. It will strain any relationship you have.

Wear a condom every time.

Have fun! It can be a really fun time, you will meet some cool people.

Keep anything valuable in your room.

Go to class.