My sister's academic performance is getting worse and worse. I'm worried. Any good ideas?

You'd better tell her your present situation. It should work. Family problems are an important reason for her academic decline. You can talk to her parents and play a good role in her family. In addition, problems such as surfing the internet are also the reasons for the decline in academic performance. You can tell her directly and she will listen to you.

Also, you have thoroughly understood the disadvantages of not studying hard, so you can explain why you want to study for him. It's essential for her to teach herself, otherwise it's useless to try again.

I hope I can help you.