If you want to become stronger, you have to keep learning. Learning methods also need to change.
Primary is to master the skills of development, able to have initial development capabilities. After reaching the intermediate level, you will be able to handle it. Gradually, you will find that many things just stay at the application layer (will be used).
The initial condition of becoming a senior engineer is to understand the principle of implementation, because only by knowing the principle can better optimization be done.
how to learn
1. What is the first question to ask?
2. The realization principle of this problem
3. When to use it.
4. Make a conclusion.
5. Think about how to optimize.
6. Upgrade or rebuild a new wheel. (Personally, I feel that in the early stage, I can imitate some excellent third-party open source projects, which is conducive to making my own architecture. After all, standing on the shoulders of others can also see farther)