I sort of learnt it from books I got in the bookstore and school library. I will not name them, because they're not in English.
At the same time I spent 8 years learning it day in day out in high school and university, so it's hard to tell how far you'll get with just self-learning.
It also depends on what you want to do with the knowledge. Perhaps just go book browsing to a library that has a good set of books about electronics, to find what you mind be the most interested in. Libraries associated with electotechnical schools typically have plenty of these books.
At the same time I spent 8 years learning it day in day out in high school and university, so it's hard to tell how far you'll get with just self-learning.
It also depends on what you want to do with the knowledge. Perhaps just go book browsing to a library that has a good set of books about electronics, to find what you mind be the most interested in. Libraries associated with electotechnical schools typically have plenty of these books.