Could you kindly review?

This is my thank you letter for my seconded company. Next week, I will be back to my original firm, Kim & Chang. *** Dear all, As some of you might already know, this is my last day in Diageo. This one year is like a long dream for me. I believe I was fortunate enough to have great memories with amazing people. I appreciate everyone's understanding helping me live well here. Also I hope to excuse all my faluts and mistakes. Although I'm leaving here now, I hope to keep in touch with you, and wish you all the best both personally and professionally. Take Care! Sincerely, [이름]

Hi there, TJ! Thanks for your composition today. Here are some suggestions that you may want to consider. Take care and have a nice day! T. JanE ^^ This is my thank you letter for my seconded company. >> This is my thank you letter for my second company.  Next week, I will be back to my original firm, Kim & Chang. >> Correct Dear all, >> Correct As some of you might already know, this is my last day in Diageo. >> Correct This one year is like a long dream for me. >> Correct I believe I was fortunate enough to have great memories with amazing people. >> Correct I appreciate everyone\'s understanding helping me live well here. >> I appreciate everyone\'s understanding and it helped me live here well.  Also I hope to excuse all my faluts and mistakes. >> Also, I\'d like to apologize for my shortcomings.  Although I\'m leaving here now, I hope to keep in touch with you, and wish you all the best both personally and professionally. >> Correct Take Care! >> Correct Sincerely,[이름] >> Correct