I see(!)
Okay, firstly I'd say that Ni-lead is still quite solid. Despite a strong articulation-dampening, your mind is able to tumble forward in monologue in that Pi-heavy sort of way. Especially in the second video when you're more casual. Your mind is perception-surfing in quite a streamlined fashion, even if your articulation isn't as smooth.
And as before, your statements aren't rigid in principle, but more of a continual tangential stream of interrelated
experiences. Which is characteristic of P-leads or at least P-heavy types.
In your case, Ti cannot be gauged or intuited based on momentum-halting. Especially because Ti momentum halts & neutralizes emotion at the same time. But in your case, there is little emotionality in your voice (no Fe push there to neutralize) and your pauses don't seem to be wholly neutral either.
If you look at the TiNe cues video you posted, even polar Fe comes out warmer than you seem to come forth. If Fe was secondary, I don't think even severe clamping could diminish it this much. I don't think you have Fe.
What is the most telling, though, is your intonation. When I listen to your video while closing my eyes, I clearly recognize that pattern of articulation as one of Te. There are various tones to Te that are typical, one of which is a nasal, monotone and more slow than other Te tones.
Even heavily Ti-infused Fe articulation sounds different - usually more shy and receding. Ti tends to make the warm articulation of Fe slower and softer -- while Fe still has an emotionally impacting aura. One good example of this is:
Myself (TiNe) a few years ago. Notice how there's a warmth in the voice, but the voice recedes quickly (with an emotional digression) after every little hop outward. The softness is heard quite clearly at 2:40-2:50. That's Ti momentum-halting and neutralizing Fe warmth.
Your articulation is more akin to this video:
(Fi+Ne) Ermine. I use her as an example because she also has clamped Te articulation. The clamping can be heard at 0:24, 0:30, 0:32, 0:33, 0:35, etc. Notice how her voice is more similar to yours than mines is -- following the same sort of monotone, quick-initiation (no swell/fade in and out) of each statement, nasal.
But what's more telling still than that, is the mouth. Fi/Te users have this thing with their mouths where their snarling happens randomly during and at the end of words. While their articulating, their mouth is constantly being micro-pulled upward toward their nose from the sides of the lips to make a 'disturbed' expression.
In Ermine's video its happening constantly but a good clear shot is between 1:09-1:12. In there you see that she makes these expressions, especially when she says "in my head". I don't wanna take a screenshot, for privacy reasons but if you pause right when she says "head" you'll see the expression.
While your expressions aren't as pronounced as hers, your mouth does do constant micro-pulls upward of this sort -- which I can see clearly now. Your lips move not via Fe prompting, but accidentally into a variety of shapes as is characteristic of Fi.
I'm also not entirely sure you really fall on the autistic spectrum. Or rather, I should say that according to CT theory, Fi users often fall into the autistic spectrum especially if they have a lack of development of Fi -- causing lack of touch with one's own emotions and no gateway whatsoever (unlike Fe) to gauge the causality of the emotional dynamics around them. I am not an expert on aspergers/autism but I do know that underdeveloped-Fi types do very often get diagnosed this way. The same way strong Ne/Se-leads get diagnosed ADHD, whilst it may instead be a developmental result of overusing a psychic process.
So in short, you're an NiTe with underdeveloped Te and Fi. The fact that your Te is also absent in a lot of ways, makes perfect sense as to why Fi is also not as developed -- as functions develop simultaneously via oscillation.
This also precisely explains why your eyes seem soooo very intensely Ni and Se-locked-on at the same time. You have a very strong Ni-Se primary oscillation and a very weak Te-Fi secondary oscillation. I think the strength of one oscillation is inversely proportional to the other.
I'll be back to post more in a bit (as I have responsibilities to tend to). But I may be able to give some suggestions as to how to balance your functions more.