проверьте пожалуйста на наличие ошибок Безотлагательно

Проверьте пожалуйста на наличие ошибок Безотлагательно Dear Louis,
Thank you for your last letter. I'm sorry that I have not written for so long. I was busy studying at the university
Last month I was on vacation with my family. We had a great time. My life has changed a lot lately. I entered the university. I am now a student. I really like studying there. But sometimes there are difficulties. I moved to another city and met new friends. This wonderful city here is kind, sympathetic people here are very warm. I really like it here
Soon I will write.
With respect,