Hm. . . . If she's especially small, then maybe the factor that caused her to be blind also affected her overall prenatal development. I know that a kitten raised on dog food wil go blind; cats' nutritional needs are veery specific. They need lots more protein than dogs.

In the wild, of course, this little kitten wouldn't last very long. But it sounds as if you've already begun to devise ways to communicate with her. Like, if she has problems getting the hang of what the water bowl is for, that definitely shows that she'll need special help adapting: here is where you eat, here is where you drink, this is where you do your business, etc.

I'm impressed that she'd have the gumption to get out & wander into the kitchen on her own. The world is a big enough place even for sighted kittens.

Who is GSD?

You may find that some other animals will be protective, but some may not act very nice to her. Just watch & see. Some may need to be shown that it is NOT okay to mistreat her.