You will not necessarily be rolling in the dough when you first graduate. Write out a yearly plan and figure out how long it will take you to take over your bills officially.
Please determine what you can afford in terms of rent, food, clothing, transportation, and entertainment based on your income, create a budget and stick to it.
Speaking of paying for your things, it would also be time to do your taxes yourself. I know I am throwing a lot of big stuff at you but doing your taxes isn’t that bad.