I'm reminded of an Adam Sandler comedy CD in which he did a skit and just kept repeating, "No! They're all going to laugh at you!"
You know what? Let them laugh.
When you try to go after your hopes, dreams, passion, purpose, money, success, etc., many will say you're crazy. Especially if it's something unconventional. That's when you know you're on the right track. If you look at yourself at the end of your (work, travel, creative, business, etc) type of day and say, "I'm making progress and on the right path," then really, does it matter what they say? I nominate no for an answer. Apple did zero market research when deciding whether to make the iPod, iPad, Mac and iPhone. They didn't research whether retail stores were a good idea, or where to open them. They had an idea and they went after it. Prior to each of those events and product launches, people told them they were crazy.
I understand, we can't all be the guy who created Facebook. Mark Zuckerberg already beat us there, and allegedly the Winkelvoss twins. Still, I'm convinced, you can be whoever you want to be and do whatever you want to do. I could name to you hundreds of people who have laughed in the face of conventional wisdom only to create something great. Each of them were told, "You're crazy."
Sometimes I really think I am crazy. Like some day, all this effort, all this persistence, all this energy, all this charisma and charm will combust into a successful project, business, idea, strategy. Well, ok, maybe not the charisma and charm, but the rest of it, why not?
When you are trying something new and different, it will only be a matter of time. Someone will tell you that you're crazy. Just look them right in the eye, smile and say, "Thank you." Or you could just lay down wherever you happen to stand (or sit) and pretend to fall a sleep. Both are acceptable options.