You don't have to tell anyone what you're going to do. Just do it. Be silent if you must, but don't worry. You'll get there one way or another. It's better if you conserve your time and energy for the tasks, meaning that you should spend less time talking and more time doing your job. Agree?
People have the rights to judge or underestimate you, but you don't have any rights to do so to yourself. You have to believe in yourself because you're more powerful than you know. To unlock that power, you must keep working and practicing every day until you've found that hidden power. It's the power from within only found through hard work and repetition of practices.
Stay silent and work hard every day. The power of silence is far more powerful than you know it. You'll see it when you get there. To get there, you must keep working harder and harder every day. I can't stress that enough.
You can live anywhere on this planet and still do what you're dreaming of accomplishing because the world is far more connected than it ever was. If the people from a few generations before us could achieve so many incredible things with little help of the connectivity level that today's world can provide, so will you.