Can you write about how your study and daily life have changed since junior school(60到80单词）

急你所急,完全正确：
I used to be lazy boy in primary school,dozing off in class and fooling around after it.I thought that was fun and cool,that every boy should behave like that.Since entering junior high school,however,I have matured a lot and come to realize that a good education is essential to my future success when I grow up.Now,I spend more time on studying even though I still keep doing sports every day.Good health is also very important,you know.In addition to studying hard in class,I also try to learn from others whenever I can.I am confident that I will get into a top college upon my graduation from high school.Just wish me luck!