knowing gets you half way through

When you know you're on the right track, nothing anyone says can dissuade you. Every circumstance becomes an opportunity. Time becomes your friend, as every moment leads you closer to the inevitable attainment of your worthy purpose.
The time you take, and the effort you spend, to develop an unshakable belief in the value of your work, will pay huge dividends in the commitment, resilience, persistence, creativity, focus and determination it brings you.
Believe in what you do, and do what you believe in doing. And it will happen.