请帮我看看这篇作文的语法错误点,我自己写的,大小写不用纠正.

请帮我看看这篇作文的语法错误点,我自己写的,大小写不用纠正.
my low-carbon life
now ,many people like low-carbon life,so do i .our earth is in trouble.we should help it but how to do it 、have some advice.
first,i ofen go to school on foot .it not only can Protect the environment,but also can get exercise.
second,if i leave the classroom or my house ,i will turn of the light ,the electric fan and the TV.
then,i will close the faucet when i don't use water .
next ,make full use of paper.
finally,i often use the Cloth Bag rather than plastic bag.
Protect the environment,is everybody's business.you should have low-carbon life as me.