Teach Yourself Computer Science

Wow, pretty cool. The fact that this exists tells you something. Here is the TL;DR from the site:

Study all nine subjects below, in roughly the presented order, using either the suggested textbook or video lecture series, but ideally both. Aim for 100-200 hours of study of each topic, then revisit favorites throughout your career 🚀.

Teach Yourself Computer Science

All the resources you need to give yourself a world class computer science education