You and your class have brought joy to my life. You have impacted my life, pushed me as a teacher, and I hope the absolute best for you and your future. I will miss you all tremendously. No other class can take your place and I will cherish the memories we had. I am so incredibly excited for you and your future. The future is bright because there is brightness in you. I am excited to hear about your adventure through life, keep me posted.
And don't forget, everyone you meet in this world is the main character in their own book. Just like you are. Look to understand them and love them.