well, to learn linear algebra, which was pretty darn important, I used 3Blue1Brown's YouTube videos, which are pretty awesome, plus a textbook I picked up at a used bookstore (I can find it and get the title if you're interested). Then I used the YouTube series Quantum Computing for the Determined, by Michael Neilson, which got me started in my understanding. Throughout, I would try to explain it to other people, like my mom, because that helped me learn.
Then I got a copy of Nielson and Chuang's Quantum Computing and Quantum Information, which I'm still learning from. I've also read a bun…