1 Communicate with your mom as well as discuss the issue with her calmly.

2 do something to prove that you're old enough to deal with things by yourself.

3 Behave yourself.

中间添加一些过度连词就行了。这是专门叙述建议的一段话，要另起一段。第一段写自己遇到的问题。最后谈谈自己的看法。总分总的形式。一般英语的信函，议论文，说明文，应用文都要分段。以便给读者（阅卷老师清晰明了的印象）