At the heart of it, I suppose, is choice. We have free will, remember, and we exercise our free will by choosing. Essentially we choose God or we choose the world.
In other words, you are free to choose God’s way, or the world’s way.
This choice answers the first part of your question and helps mould the rest of it. You can still choose God’s way whilst feeling uncertain. Nothing wrong with that at all. Focus on what you are certain about, let the rest follow.
Besides, you can’t predefine or decide on the rest of it; you can only discover through a journey of faith. But it seems that to focus on the journey before the choice is to try to run before you’re aware you can walk.
So, to begin with, focus on what you said here: ‘one cannot know of something and be neutral to it.’ I think that’s pretty important, actually: of course, I would say so, because I’m talking from experience!

Perhaps write down what you do know and are certain about. Hold onto that.
Hold on to this, too: if you ‘know of’ him then you’ve already started your journey. You’re on your way to making that first, most important, choice.
Hope this helps
