I think my biggest mistake was to read a lot instead of practicing a lot.
I started to read a technical book with a goal to finish it. Nowdays my goal is not to finish reading a book, but to get the required information for my current task.
Reading a technical book from start to finish without a practical goal is a boring task and a waste of time. Instead find what is interesting for you, do research, ask questions, find answers, ask more questions. Make your brain work instead of just consuming information from a book/article.
I am doing the exact same thing. Before, I would look over tutorials over and over to be "thorough" and try memorize everything, even if I knew it wasn't in my best interests. Now I do a lesson and create a small application and keep building that application.
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