In life there will always be curve balls. You can have a dream, tell people about it, and either the response will be supportive or not. Often times we crave the positive support to affirm what we already know, that we are indeed, capable of reaching the stars. Then there are times you hear the words...you'll fail. Although you can have the support of the world, those words from a few people seem to stick out the most.
No matter how tough the journey, you are the only one who will determine if you succeed or not. Either you can listen to those pessimistic people and throw in the towel because they don't have your vision. OR you can step over them and keep moving forward. Just how important is that dream of yours anyways?
Thomas Edison never failed. He just found 2000 ways how not to make a light bulb work.