When you insist on fitness, you need to keep learning to strengthen your professional knowledge. Fitness is not simply pulling iron, it is a huge scientific system, involving human mechanical structure, human muscle tissue, human metabolism, human nutrition and so on. If you have a basic understanding of these aspects in the actual exercise process, no matter how you get the knowledge, you are not a white boy in theory.
Of course, fitness needs actual combat, and it is useless to know only a bunch of theoretical knowledge. What you need to know is the different exercise methods in different parts, the standard usage and wrong usage of different equipment, and you need to know yourself well. You need to know what kind of weight is suitable for you, when to increase the weight, what is the training cycle suitable for you and so on. Gyms are not designed to be cool. You need to really improve yourself in it. You can't show your fitness just because there are beautiful women in the gym. Such a wrong behavior will only make others laugh, and it will also cause great losses to yourself.
When you have a deep understanding of theoretical knowledge and practical application, you can get rid of the hat of fitness white.