After 20 years of being a locksmith, I have decided that I want to get a university degree and I'll be starting next year! As part of my degree, I will be doing two mathematics courses - one in calculus and the other in linear algebra.
The problem? It has been two decades since I've touched any textbook, let alone a mathematics textbook! Also, I only know how to add, subtract, multiply and divide - and even that takes a while to do, yet I need to learn pure mathematics from basic arithmetic (preferably adding numbers in my head, adding fractions, finding percentages - those sort of things) to first year university calculus and linear algebra that is proof-based and rigorous.
If you were in my situation, what would your strategy be?