大家帮忙看看这篇英语作文的错误Last week,we had monthly exam,9 subjects incl

大家帮忙看看这篇英语作文的错误
Last week,we had monthly exam,9 subjects included.After every exam,I checked the answers with others and find some of my answers were not the same like my classmates'.What was more,the maths questions were so difficult that I didn't finish the papers.Therefore,I could do nothing but go on with the other exams.I decided to entertain me with some music so that I could be confident in other exams.The music did not work and I just did normally and even much better than before.
From this monthly exam,I learn we must have confidence in whichever we want to do.We must stick on our views,and never give them up.
老师说一共有十处错误，