[QUOTE=Etern1ty;551401]Could you check my letter for grammatical mistakes and informal style, please?)
Here it is:
Your penfriend has recently written to you saying that he/she is very unhappy with school and home life. You have decided to write a letter of advice, offering your support. Write your letter, making various suggestions and saying what result you expect if he/she follows your advice.
Thank you for your latest letter. Iím sorry to hear that you have problems at school and at home .(one doesn't write it like this) I thought I should write back straight away and give you some advice.
First of all, you said that youíre very unhappy with school. Why donít you try to improve your relationship with your schoolmates? By doing this, you can rely on their help in difficult situations.
Another suggestion is for you to change school. That way, at least you will change the circumstances and find new friends. Also the new teachers might be better than the previous.
You said that youíre unhappy with your home life. If I were you I would speak with my parents about it. If you do this, at least youíll address it as an issue. You might try to figure out what the problem is, together, and decide what to do next.
I hope that my suggestions will help. No pain - no gain, so anyway you must make an effort. By all means write back and let me know how you get on.
Kind regards / lots of love (in an informal letter you don't write thank you in advance)
Hope I have been helpful