What's a good book for Quantum Computing? When I took Aaronson's class last semester I got so wrecked by everything, and it just felt like everything was so conflicting from many different resources
Theory from the point of view of physics (as in, less focus on algorithms, but some focus on building hardware): see Preskill's notes or Chuang&Nielsen's book.
I would suggest quickly skimming them once before trying to read them cover to cover.
And some lighter online introductions might help as a first step.
You definitely will need very good knowledge of college level linear algebra (linear operators, basis, diagonalization, eigenvalues).