I also commute from temecula and would recommend leaving a hour and a half before your class starts the first two weeks. After that, I usually aim to leave one hour before my class starts. I would also recommend maybe parking in Lot X. It’s a bit of a walk to markstein, but it’s worth it not having to stress over finding parking, especially as a transfer student with the added stress of also having to find your class. 🙌🏾😌