If you live your entire life crippled by pessimism you'll destroy your own dreams endlessly. Cynicism is the root of failure and it infects every prospective goal and kills all life before it can even begin. It's better to try and fail a thousand times than to do absolutely nothing because you have such a low sense of self worth you don't think it would ever work; You'll do absolutely nothing your entire life if you don't find a reason to believe the impossible can be made possible - if you don't forge your own perspective and re-write the heavy mantras of inevitable collapse you feel you're fated to then you WILL die in nothingnesss. If no one will believe in you, it's honestly just better to believe in yourself, because at least then you'll take action. Do something creative, Take up a hobby you've always put off, Take that risky business move you've always been told you can't do. Because you know what? You might actually be really amazing at all sorts of things you would never ever have realized you were even capable of! You owe the world what you have to offer, never think otherwise.