The best way for learning new things quickly

From personal experience, if you want to learn something quickly and effectively, check out a crash course video on the topic and set the playback speed to your preference (I like 1.5x). Afterward, get to work on the project that led you to that course, and if you run into any issues, search for answers on Google, Docs, StackOverflow, or wherever you can find them. This approach helped me to learn a new language in no time and avoid getting stuck in tutorial hell. What approach do you prefer for learning new things quickly?