How are you doing? I hope all's going well for you. How are your family and your job?
Everything is going smoothly for me. I had a job interview last week, the manager who interviewed me was very impressed by my experience and background. I got hired the very same day. The company has great management, I'm feeling very lucky to be hired.
I have also just bought a car, for the daily commute to work, though it cost me all of my savings so I'm poor now! The car is red and black.
Enough about me, I you are well and hope to see you again soon.
Not a teacher only a native. I have attempted to re-write your letter (I have layed it out as if written on paper, if it is an email the format should be slightly different (no indentation after the Dear Kristina or for Best wishes, T).
Hope this helps.