I would say the tone of this sentence is formal.
Answer:
Dear Jessie,
I hope this letter finds you well and that you're doing well in your new school. I'm so happy that you're attending my former school since I have already finished high school and in the same institution as you, I will give you some precious advice.
First of all, it is a very prestigious school they only admit the best students. There's a dressing code that you must respect, the school is very strict about it. Also, the classes are great, you'll learn a lot, but be aware that the teacher's exigence is high. They give the best of themselves and expect the same from their students. Lastly, there're plenty of clubs that you can join where you will gain experience and knowledge for the future, don't hesitate to join some of them.
As this is a prestigious school, you should study hard, be punctual and respectful towards your classmates and teachers. The students there're very friendly and always ready to help you, it is easy to make friends, just be yourself and enjoy your time there.
Best wishes!
Kendall.
Explanation:
When we write a letter to someone that we know, we have to use informal language. The use of contractions and everyday phrases or words is allowed.
In the first paragraph, we greet the person and introduce the topic of our letter. In the next sections, we proceed to give information about the school and advice. Lastly, we write a closing phrase and our signature.
To compare loneliness to an undesirable illness or disease that is difficult to cure.
