I always thought the “climax” was the end of something and everything else was a build up to it. The adventure begins by an interesting verse that captures the imagination and builds by adding little hooks that lead to a chorus that drives home the message. Whether the message is relevant to the listener is another story though.
(I can’t write for teenagers now because I don’t understand their motivation.)
🤔
So, to sum up, I think the climax belongs at the end of the journey or just before the end.

Vic