Julia, ( if you are still checking on this thread )
Is there a type of car you like to watch race? If you enjoy watching it, it will keep your interest learning to drive with it.
I would suggest , when you're just starting off, that you download a car that is not high horsepower. If it's hard to keep pointed in the direction you want to go, it will be frustrating. If what you really like is hard to drive for you , turn on the driving aides in the sim until you get some laps under your belt and then start turning them off. If your goal is to some day be in an online racing league, they pretty much all don't allow the driving aides.
Let use know what kind of car you like, and we might be able to suggest a good student level car of that type.