You might not feel much different yet, but that’s okay. Only someone non-binary would have wanted to click that button. That means you’re non-binary on the inside, through and through.
If you need permission to live your life as a non-binary person, you have it. If this is what you want, don’t let anyone -- including yourself -- hold you back. And if you ever want to change your mind about this later, that's totally fine. Your choice is 100% valid. Give yourself the chance to explore!
Good luck out there. We’re rooting for you.