Comparing 3°eso with 2°eso

Writing 01 

In my opinion the new school year is more difficult than the last school year because we have to learn more difficult things.
This year the maths is more difficult than the last year and I must study more, and in my opinion 2 °eso was the best school year in my life because I was very happy.
In 3°eso is lest relaxing than 2°eso because we have more things to do and we have to study more.
In the new class I meet more news students and they are very friendly.
In the new class I am the best with the geography and I am the worst with the french.