I am a big fan of science fiction, and I always wanted to go to Disney's tomorrowland. I can understand why you would be so fond of the place and the memories, but, yes, I suspect most folks wouldn't get as carried away with it as you are.
You know what, though? I think your wish to do something like that could provide you the incentive to see a counselor and work through your current issues that keep you from going there--or many other places! How about it?
You can do it! I know you can! If need be, then check into the possibility of going to a clinic or to some other counseling place that uses a fixed scale. Of course, you'd need to ask about help with not wanting to leave the house first. Are you familiar with the systematic desensitization approach to getting rid of fears? (Plus, working on your other issues might get your mind off watching tmorrowland things so much.)