每个人的成长过程中，既有快乐，也有烦恼。请用英文描述你曾遇到过的最大的烦恼。

提示:1）短文应包含思维导图中相关的要点，条理清楚，行文连贯;

2）短文中不能出现真实的人名和地名;

3）词数不少于70，短文开头已给出，不计入总词数。

My biggest problem

During my growing—up years, I had a happy time, but I had some problems. My biggest problem was…