What English grammar have I made mistakes?

I am a self-taught English student. Could you please check the English grammar mistakes I've made in this letter and corrent them? Thank you all in advance.


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Hello Mrs xx,





YJ came home and said that she should be tutored. I was happy to hear that because this is her decision. Thanks for counselling Yujin today. She told me that I should tell you her decision because she has changed her mind after you had counselled her today.





I would be very pleased if you arrange for her tutoring. Social Study and English would be picked up for her tutoring, wouldn't they? Please let me know if the subjects would be changed.





YJ prefers to take a tutoring at her school. I will definitely pick her up if I can make it; otherwise, she has to walk home. I hope she will be fine walking late in the afternoon alone. Moreover I hope she won't drop out of the tutoring later.





P.S. 1


YJ is going to have a test from Science class this Friday. I am concerning that she might not understand the English instructions on the test. Would you mind if you ask her science teacher to help her a little with the instructions. I hope science teacher would be fine if she asked questions about some English on the test that she doesn't fully understand.





P.S. 2


I don't see her science teacher's Email address on at her school website. I would like to contact with her teacher by Email if I have some time. One day I asked her if her science teacher has Email address. She said that her teacher doesn't use it. I don't fully understand what that means. It would be very convenient if I knew her teacher's Email address.





I look forward hearing from you,



If I was writing this as a native (English) speaker, I would write it thus:





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Dear Mrs xx,





Thanks for counselling Yujin today. She came home from school and told me that the two of you had discussed the possibility of some tutoring. I was happy to hear this because it has been entirely her decision. However she has asked me to contact you because she has changed her mind after speaking with you today.





I would be very pleased if you would arrange the necessary tutoring for Yujin. Social Study and English would be the subjects concerned, wouldn't they? Please let me know if these subjects are changed.





YJ would prefer to undertake the tutoring at school. I will pick her up if I can make it; otherwise, she may walk home. I hope she will be fine walking alone late in the afternoon. Moreover I hope she won't drop out of the tutoring later.





I look forward hearing from you,





Yours faithfully





(your signature)





P.S. YJ is going to have a test from Science class this Friday. I am concerned that she might not understand the English instructions on the test. Would you mind asking her science teacher to help her a little with the instructions. Furthermore I hope the science teacher will not be unduly perturbed if Yujin needs to ask questions about some of the English on the test, in the event that she doesn't fully understand.





P.P.S. I don't see her science teacher's email address on the school website. I would like to contact him/her by email if I have some time. One day I asked Yujin if her science teacher has an email address but she said that her teacher doesn't use it. I don't fully understand what that means. It would be very convenient if I could have her teacher's email address.


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That's how I'd write it if I was going to be writing such a missive anyway.




Tenses, dear. All time references are upside down. Don't worry, I made similar mistakes too.




it all looks very good apart from you need to put your name at the end before the p.s parts