Maybe your next Disney trip should be just your husband and you, so you can focus less on planning and more on playing?
I tend to find the family oriented trips less "magical", because I spend the entire time trying to make sure everyone else is having fun. When it's a "mom-and-dad only" trip, I definitely experience much more personal "magic".
Which isn't to say I don't love family vacations and bonding with the kids, etc, but it's definitely more of a "working vacation". And this is something that actually became more true as the kids got older. When they were little, the magic just happened and I could experience it vicariously through their eyes. And if someone was unhappy... well, they probably just need a nap. As they got older, they developed specific tastes and opinions and desires, and making the vacation go smoothly became a lot more mentally challenging. And sometimes, yes, they still just need a nap, but you can't send a young adult to their bed!
Last fall, we took the whole family to Universal (me, husband, dd 20, ds 19). It was a successful trip, but exhausting, and I did not end that vacation with an overwhelming desire to go back to Universal. In fact, I probably could have shelved it for the next three years, the way I was feeling. However, we had a trip with just my husband and me booked for this past May. And this one was truly relaxing and fun! I'm so glad I went.
Sometimes you just need to stop being "Mom" for awhile.