/sci/ - Science & Math

Hey, /sci/. I'm an engineer, and I've discovered the need for deeper understanding of mathematics and the necessity of having programming skills at the late age of 27. Obviously, it's too late for me to enroll into a real university again, so I've been somewhat unsystematically educating myself using online resources. There's lots of theory available, but what I lack is practice. A lot of youtubers advertise briliant.org. Is it any good? How should I most efficiently approach such a task? I'm particularly interested in data analysis and optimization methods.

>26
>History
Just fuck me in the ass senpai. I wanted to become a history teacher but it's practically impossible in my country because it's oversaturated with cunts like me. Now I don't really know what job to go after. I like history though.