Look at UIUC and Open University, MIT's OCW, community/junior colleges can give you a big boost, there's probably a lot of other advice at /r/math, /r/LearnMath

Look at UIUC and Open University, MIT's OCW, community/junior colleges can give you a big boost, there's probably a lot of other advice at /r/math, /r/LearnMath and math.stackexchange. Some older threads: https://news.ycombinator.com/item?id=19811715 https://news.ycombinator.com/item?id=19811715 https://news.ycombinator.com/item?id=18939913 https://news.ycombinator.com/item?id=18939913 https://news.ycombinator.com/item?id=19071050 https://news.ycombinator.com/item?id=19071050