Really simple and straight to the point:)
Hello (mr/mrs__),
I wanted to thank you for arranging the school trip. I really appreciate it and thought I should thank you. Have a good day!
(ur name)
I am unsure about the choices I make, because it might affect my destiny.
Answer:
it's best if you don't beat around the bush and tell everyone the truth
Because for it to be a claim it needs to be supported by an evidence or it would just be your opinion