（初二）帮我看看英文作文有错误么

when(when改为during,因为你意思是说在成长过程中嘛) we growing,we often have some pains and gains.
we must do some homework and study hard,and (and改为but)we have less time to relax and play.
sometimes we feel them very boring.(改为feel very boring with them)
my parents let me play the piano,but sometimes i don't like (加the)piano,i like drawing.
they are my pains.
but i have some gains too(too可以改为at the same time吧,因为too一般是形容同样一样事,比如说都是好事或者都是坏事,而不能用来说先坏事再好事).
now i have learned more konwledge ang(and吧) i can play the piano very well.
my parents often take me to see fireworks.
they were very beautiful,i love them.
i will take part in a culture art festival next week,i'm looking forward it ,because i will play the piano on the festival.

we are growing

第一句：“when we growing"
应改为“when we grow up”
pains应改为“pain”
因为pain作痛苦时是不可数名词。
“they are my pains”和“but i have some gains too”
同上。
“now i have learned more konwledge ang i can pla...