Is this email grammatically correct?

I am not the best with grammar (at least I don’t think). So please be nice!

To the parents of MU’s class,

I write this to regretfully inform you that Friday, February 1st will be my last day at SB. These past 4 years at B have been amazing, but these last few months have definitely been my favorite. I have always known I have had a knack for preschool teaching, but being with your children in the past 5 months have shown me that this is what I am meant to do. I recently received a full-time preK lead teaching job much closer to where I live in M. While I hate to leave in the middle of the year like this, I fully believe this is an opportunity of a lifetime and I had to jump at the chance. Each and every one of your children have been an absolute joy in my life, and I say that whole heartedly. Seeing them every morning, and just talking to them about their day, honestly makes my day. Even though I will miss them immensely, I see a classroom full of leaders, go-getters, and achievers, that will no doubt take on the world! I want to thank you all so much for being so kind and gracious to all of us at B. You and your little ones will ALWAYS hold a special place in my heart. Not only as my first preK class, but as a class full of good-hearted and loving children. Again, thank you for everything, and I wish all of MU’s class a blessed future.

Sincerely,

My name