Like another poster stated, it comes in waves...
....I get excited when I first book my stay...
....I get excited when I have my air travel taken care of.....
....I get excited making ADRs...especially when I get everything I wanted ...
....I get excited filling in my Excel spreadsheet with travel info, reservation numbers, EMHs, park hours and plans/hopes for the day....
....I get excited with Mickey Mail....
....I get really excited when the suitcase comes out and clothes go in...
....I get really really excited when I get to the airport...
....I get really really really excited when I get on magical express ...
....I get super excited when my vacation is even better than I thought it could be (and it never fails to disappoint!) ....
But then, I get really, really depressed when everything is checked off of the spreadsheet, the reverse mail is on/under my door and I am on the train of tears back home....
.....until I plan my next trip!!!