Writing prompt: Stay at Home Alone

Student essay:
I stayed at home by myself once a time when I was seven years old.
One day,my mum told me that my grandpa was ill so she should take good care of him at home. So I should stay by myself for two days. I felt very excited and a little nervous. Nonetheless my mom looked so worried about me. Nonetheless I didn't care about her at that time. Nevertheless when my mum came out. I felt it was very easy for me. I can't cook for myself. So I bought some breakfast and dinner in supermarket. I also did the clock to ring loudly. So I haven't gone to school late. I also did some housekeeping after school. I also did a lot of wrong things: For example,when I tried to misrepresent some simple things,it was burnt. I was so worried that time that I swinged my mom's cup. Luckily,I remembered to operate the door when I came out. I feel lonely and sad at first,but I became fine a few days. I did everything by myself,And I also felt my mom was very hard. I praised
my mum's words very clean. When my mum came back, I was so happy to tell her that how great I am.
I think it is a perfect experience for myself. Anyway,after that I'm very proud of myself. I have remembered that how my mum loved me.

Corrected essay:
I stayed at home by myself once a time when I was seven years old.
One day, my mum told me that my grandpa was ill so she should take good care of him at home. Therefore, I had to stay by myself for two days. I felt very excited and a little nervous. Nonetheless my mom looked so worried about me. However, I didn't care about her at that time. When my mum went out, I felt it was very easy for me. I couldn't cook for myself. So I bought some breakfast and dinner in the supermarket. I also set the clock to ring loudly. So I didn't go to school late. I also did some housekeeping after school. I also did a lot of wrong things: for example, when I tried to cook some simple things, they were burnt. I was so worried at that time that I broke my mom's cup. Luckily, I remembered to lock the door when I went out. I felt lonely and sad at first, but I became fine after a few days. I did everything by myself. And I also felt my mom worked very hard. I appreciated my mum's efforts very much. When my mum came back, I was so happy to tell her how great I was.
I think it is a perfect experience for me. Anyway, after that I'm very proud of myself. I have remembered how much my mum loved me.