帮检查一下这篇英语作文有没有错误,单词还有语法都帮检查下

帮检查一下这篇英语作文有没有错误,单词还有语法都帮检查下
如果可以,帮忙改得更好
My life has changed a lot in the past few years.When I was in a primary school ,I used to have so much time.But now I have to get up early and study in school the whole day.Before I used to spend a lot of time playing games with my friends.But now I don`t have time to do that anymore.I have to study haeder and harder for a good high school.And I used to play after school every day.But now it`s impossible for me.In the evening,I used to have a great time playing computer games.Now Ihardly ever have time for computer games.I have tmany homework to do every night.And then if I don`t go to sleep early,I will sleepy and lose many things in class the second day.I really miss the old days.