Just out of school, the most painful thing when I graduated was that I couldn't move the library. If you want to read now, you have to buy it yourself! But now when I encounter problems at work, I will ask for leave like my predecessors, and their experience answers will be more practical than the knowledge in books. If it is a non-professional problem, I like to search on the Internet, and generally I can get a satisfactory solution. There are exceptions, for example, I really want to whiten, but I think too much and can't help it!