Everytime when vacation comes, 
每次当假期来临的时候,

I will be very happy,
我会很开心,

because I don’t have to study and can play all the time.
因为我不用学习可以一直玩耍。

But I always forget about the homework,
但我总是忘记了作业,

I will do it until last minute.
我直到最后一分钟才会动手。

It is very painful for me, 
这对我来说非常痛苦,

I am so tired and want to sleep, 
我太累了,想睡觉,

but I can’t, I must finish my homework.
但是我不能,我必须完成我的家庭作业。

I need to finish my homework earlier next time. 
下次我需要早点完成家庭作业。