No it is an exciting leap. Though after a while the newness wears off and you settle into it. I do opine that the leap/excitedness has to do more with switching out of high school rather than turning 18, but yes, turning 18 is an exciting period in and of itself also (I am 19 and graduated high school at 16 turning 17 hence my opinion).
Congratulations (yeah I know a bit early) and I am sure you will do great!
😀 Zuberman! 😀