Writing speech for the first day of school

As it is the beginning of our last year at school it was the right time to say “Thank you” to our teachers for everything they have done for use for the past four years. In order to do this we decided to write a speech and read it in font of the teachers, our schoolmates and the parents who were there on the first day of school. As my classmates had other tasks I had to write this speech and afterwards read it without making it sound trivial and boring. I tried to find some ideas on the Internet but everything I found only things that have already been said and heard thousands of times. I wanted to be original so I wrote something and asked my parents to read it of course I wrote it again and again until it became something I liked. Finally I was really satisfied with what I did.