Quara: Strategy to teach yourself math from basic algebra to high level mathematics

If you had to teach yourself math from basic algebra to high level mathematics, what would be your strategy?

https://www.quora.com/If-you-had-to-teach-yourself-math-from-basic-algebra-to-high-level-mathematics-what-would-be-your-strategy/answer/Cornelius-Goh?ch=3&share=be44143e&srid=oZzP