I’m a 19 year old freshman in college and I took trig my senior year because I didn’t feel like dealing with an actual math class my final year. Since then I’ve become infatuated with physics and the adjacent applications of it in biology and chemistry. Is it too late for me to learn pre-calc and start becoming a true stemcel. If not, where is a good place to learn online. I’ve taken hs physics and algebra 2 but god knows how much I remember