You're not ready for so much excitement.
5 seconds sound clip from the The Nightmare Before Christmas (1993) movie soundboard.
You can hear this line at 00:05:07 in the Blu-ray version of the movie.
Quote context
[...]
- You're a witch's fondest dream!
- Walls fall? You made the very mountains crack, Jack!
- The deadly nightshade you slipped me wore off, Sally.
- Let go!
- You're not ready for so much excitement.
- Come back here, you foolish... Ow! Oh!
- Ooh, Jack, you make wounds ooze and flesh crawl!
[...]