Hey Isabel, here's my correction:

Hi Peter,
Thank you for your e-mail. I have to thank you for your interest about my life in Edinburgh. You are a great friend. Now I am going to tell how are things with me.
You are right when you say that Scotland is an interesting country to visit. It is a beautiful place where you can visit a variety of landscapes. It is very different from England, not only for their landscapes but also their people. Scottish people are more friendly than English people, also they love to meet people from other places too, like Spanish people do.
On the other hand, I think they are very hard and a little rough, also their English seems a little strange so it is very difficult for me to understand them. I am a little disappointed because I thought I could understand people better but I hope it will be better next week.
Next, I am going to tell you that the school is very good. Teachers are keen and dedicated and they study the appropriate learning styles of each student, therefore each one developes his or her skills.

That is all for now. I hope to hear from you soon.
Best wishes.

A few conjunctions and articles were incorrect but otherwise this is pretty good! 

if anyone else has some grammar corrections, maybe they can give you more assistance. 

E-mail to a friend.

This is a homework from my Language school.
Please, I need someone to correct me. Thanks.

I have to answer to an e-mail from a friend.



Hi Peter,
Thank you for your e-mail. I have to thank you for your interest in my life in Edinburgh. You are a great friend. Now, I am going to tell how are things with me.
You are right when you say that Scotland is an interesting country to visit. It is a beautiful place where you can visit a variety of landscapes. It is very different from England, not only for their landscapes but also their people. Scottish people are more friendly than English people, also they love to meet people from other places, like Spanish people do.
On the other hand, I think they are very tough and a little rough, also their English seems a little strange and it is very difficult to me to understand them. So, I am a little disappointed because I thought I would understand people better. But I hope it will be better next week.
Next, I am going to tell you that the school is very good. Teachers are keen and dedicated and they study the appropriate learning styles for each student, therefore each one develops his or her skills.

That is all for now. I hope to hear from you soon.
Best wishes.

I think you shouldn't use: I am going to tell you ... 

I didn't correct it because it is an issue of writing style. 

Good luck! :)