Living with a roommate shows you every habit you thought was normal. Some of them were just yours.

Everything your household did looked like the standard way of doing things, because you had no second sample. Share a room with somebody raised differently and the comparison arrives constantly: when dishes get done, how loud a normal conversation is. None of it is a moral matter, and all of it felt like a fact until last week.

Use the contrast while it is fresh, since it fades once you settle. Note which habits you would keep if you were choosing them today and which you only have because nobody questioned them. Then let the second kind go, which is easier now than at thirty.