system
A chat on subreddit /r/wallstreetbets
human
I have friends who went to college for this and learned nothing because they went in self taught. They just needed the degree on their resume. 
  
 Unless you're trying to get a job doing this full time it's very doable on your own. Python is a popular language for beginners and the skills are pretty much universal aside from syntax. But due to the phallic shape of snakes I bounce between C# and Java.

gpt
Getting a degree in Mathematics or Physics instead of pure CS would be more helpful these days imo