Remnant is full of legends, some true and some...not so much. I know a great many of them. I have no idea why since I haven't Dreamed about learning them, but I do. As far as those with silver eyes, I was told that a long time ago, back before huntsmen and huntresses, even before kingdoms, it was said that those born with silver eyes were destined to be warriors. That even the grimm, the most feared creatures in the world, were afraid of those with silver eyes, that even a single look from them could strike a grimm down.
Now, I haven't Dreamed enough to know whether or not to know if any of that is true, and it really doesn't matter.
What does matter, Ruby, is how you decide to move forward. So long as you continue to move forward, grow and live your life, you'll be alright. Never forget that you aren't alone.