The most obvious characteristic of someone with a weak constitution is that they have many things they want to do, but their energy is insufficient. They want to do a lot, but their stamina is not enough to support it. For example, some people enjoy reading, but those with a weak constitution might get tired after just half an hour or an hour, become annoyed, and then can't focus anymore. Therefore, you need to clearly distinguish which things are the main focus of your life and which things you can let go of so that you can allocate your limited energy to your priorities. Don't waste yourself on worthless matters. Some people feel anxious about things they cannot achieve or change, but all they do is continuously drain and torment themselves over these issues. Since you lack the ability to change them, it's better to shift your attention to enhancing your own value, doing more things that make you better, and gaining the ability to change.