I took AP calculus in high school and I really enjoyed it, but when I got to my university I was upset that I couldn't take Calculus II as it didn't fit in my schedule. I feel kind of behind now that I'm considering pursuing an undergraduate maths degree as I realise how much I miss doing maths.
In order to catch up and go beyond what is required, what order should I learn new maths in? I'll be taking Calculus II next semester, but I would like to do some supplementary work on my own. Can I teach myself topics in multivariable calculus and linear algebra concurrently with a Calculus II course? Which should I start with linear algebra or multivariable calculus?