Choose your goal, divide it into steps to achieve, think about the resources and the way to understand that you've achieved it.

1.i am going to                                                                                                            2.i am going to                                                                                                   3.i am going to                                                                                                   4.they are going to                                                                                               5.we are going to                                                                                                6 you are going to

Dear Ben! I was very pleased to get a new letter from you. Thanks for sharing your news, I am so sorry you should leave your friends. I trust you will make a lot of new friends there. In your message you asked me some questions, I will try to answer them.
You wanted to know, what do I like most about my school. I think it's my fair and gracious teachers and my best friend(s). I (don't) have a lot of friends. We usualy go to the cinema and videogames together. 
What did you do with your mates? How do you think they feel about your leaving? What do you expect from new school?
I'm sorry, I've too many things to do.
Best wishes, (имя)