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TreasureTower, I just can't shake the sense that it's Ti and not Ni as your dominant. I mean, you know yourself way better than I do, so of course you're the best one to type yourself in the end.
Words get in the way, unfortunately. I wish I could really pin down in function-specific words why I get this sense. But I can't, the words seem slippery somehow. So I have to say it this way if I'm going to say it at all: INFJs have this feel to me, it's kind of a minor chord dark-ish resonance (Ni-Fe). Your feel is different. Yours is lighter, cleaner, clearer. It's not INFP, their feel/lightness is more more summer-sun-like (Fi-Ne). Yours, while similar in that it is about light, is more like a cool clarity of light (Ti-Ne?).
I don't know if this information will be useful for you. It's pretty vague and I wish I could actually link it directly to descriptions of Ni and Ti. But like I said, for me the words get in the way at that layer.
Anyway, as I said, you know yourself way better than I do, so take it with a grain of salt.