All you have to do is say: Have a good sleep no matter what, okay? ? That's enough. First of all, you should understand that your sister is an adult and has her own ideas. A lot of things can't be forced to interfere. And you also need to know what young people are like now. To tell the truth, it seems normal to me that your sister goes to bed at three or four in the morning. Nowadays, most young people are used to staying up late, which has become a trend, although it is a bad trend. So don't make a fuss about your sister staying up late. If you speak forcibly, it will only create a generation gap between you and make her more annoyed with you.

In fact, this is a way to treat my sister. I always think that brother and sister are equal first, and then family. Personally, I think the way to get along with my sister is very good. I talk to her about everything, and even we can talk for hours without saying anything, mainly without embarrassment. But my sister used to keep my cell phone number in the darkroom. Such a change will take a long time. As brothers, we need to know what is really good for her, not what we think is good for her. It is easy for people to fall into the fantasy they give themselves.

So in the matter of going to bed at three or four in the morning. We need to know why your sister stayed up so late, but we can't worry. We must do it step by step. First, we have to sleep so late every day. We need to keep her a certain amount of sleep, otherwise her body will be overwhelmed. This is why we should keep a certain amount of sleep anyway. This request is not too much, and it can also make her feel that you really care about her. Then I usually pay more attention to her. Girls' minds are fickle, but they all leave many clues. You should know your sister well.

We can give analysis and suggestions on what she has decided, but don't make decisions for her. As a brother, respect her choice, support her after she makes a decision, whether right or wrong, and let her know that you will stand by her forever. I believe that if we do this, then all the problems will no longer be problems.