我写了一小作文,请朋友们帮忙修改

我写了一小作文,请朋友们帮忙修改
You are not going back home for the summer holiday.Write an approximately 100-120 words letter to your mother about your summer holiday plan.
1.Tell your mother why and how you got this plan.
2.Tell your mother what you will do.
以下是在下写的,请朋友们帮忙修改修改,thanks a lot!
Dear mother,
Summer holiday is coming!I'm sorry to tell you that i'm not going back home even if i miss you so mouch.Because of the high cost,i think i should to work to earn some money and reduce your burden.
My plan is to work as an assistant in a small company near my school.You know,the tuition is too high,and i have grown up so i have the capacity to work.This ont only can help me to increase knowlege but also can benefit for me to look for a job later.Hope you'll understand my decision.
Love.