Is my girlfriend a sponge?

We’ve been together for over 3 years, she’s 21 and I’m 23. I’ve been feeling frustrated because everywhere we go and everything we do, it’s always on my shoulders. She has no car or money or job, and I really hate to sound materialistic but it feels really one-sided sometimes. It’s a 25 minute drive to her house, which is killing me too. Also, it seems sometimes that she kind of just tries to imitate my personality/beliefs but I’d really like her to bring her own stuff to the table…............I don’t know…...