Griffiths is a good book to start your QM education with, but I'd try to study some basic quantum physics principles on your own first. I'd recommend reading the first few chapters and seeing which topics give you the most trouble then review from there.
Since you're a moth student, you...
I'm a senior-level undergrad student only two classes away from graduating with my BS in physics. I'm very interested in condensed matter, solid state, and device physics. My dream is to help make Moore's law a thing of antiquity.
I'm taking this fall semester off to pursue internship...