No matter what others might think of universities but if there is a place to learn math, for most people it will be there. If you actually want to learn math,

No matter what others might think of universities but if there is a place to learn math, for most people it will be there. If you actually want to learn math, then I would recommend to take courses and do the homework. You will notice how rarely you need the computer for it. I cannot remember that we used a computer even once in the first few semesters of studying math (I am physicist but we shared courses with actual math students. We just had less math courses than they did).