LOL, you know you can change her traits. She has 2 very bad traits, one of which is gluttony. I do not remember the other. You go into the character build and change her. You'll have to get rid of the one you have and replace her with the new one or just download her from the Sims4 gallery. She can be found in the search from other players after the tutorial. The tutorial now has a bug in it where she is NOT the default roommate. You can find her at an event manning one of the kiosks. I am trying to find out what event I saw her in. Hint: Once you have found or created a character you like, save her/him to your gallery so you can always refer back to them and use them in future games.
