i'd love to hear your thoughts on my video

Fe/Ti and Se/Ni are clear to me.

FeNi is my guess.  There are two reasons.  One is VR.  The other is your energy.  FeNi's have a very distinct vibe that is both intoxicating and invigorating. 

As for the VR, you do a lot of Ni zone outs and Ti pauses, but even then, you're still looking out into the world with your imagination.  Ni doms tend to get this effect like they've turned off their connection to the world entirely when they zone out, and then have a slight 'huh what?' effect when they come out of it.  Ni auxiliaries are looking outward via their imagination when they zone out, like an overlay on reality, still very much apart of the world they are comparing their pattern recognition to outside themselves, because Ni auxiliary is tied to Se tertiary, and serving the Je dominant function. 

A little neuroscience... the four P functions seem to dictate how we process, store, and retrieve our memories.  Si has a 'superhighway' effect.  Se has a 'tennis hop'.  Ne has a 'christmas tree' of possibilities.  Ni has a whole brain 'zen state'.  The difference between a P lead and a P auxiliary seems to only be the degree to which activity levels in each area of the brain operate.  Otherwise, they're very similar.  That said, I think you lean heavily toward the NiFe model, and have a stronger Ni than very clear FeNi types... so much so that you could pass for an NiFe, especially if you have strong development in areas of the brain associated with 'introverted' functions. 

Edit: My point here ^ is that you could be an NiFe. It's my close runner up guess, because you seem to be somewhere in between.  If you're an FeNi, you're likely an introverted leaning Enneatype (5, 6w5, 9, 1, 4).  If you're an NiFe, you're likely an extroverted leaning Enneatype (6w7, 7, 8, 2, 3).  The more a person matures and develops, the more blurry the distinction between their type and the opposite attitude type they become - specifically because of the way this effect works.  In the case of FeNi, they develop more introverted functions and more 'zen state'.  In the case of NiFe, they develop more extroverted functions to pull them more out of their 'zen state'.  Both of these develop the ability to Se pretty clearly as they grow.  By about 30, in both types, Se becomes potentially mistaken as a dominant or auxiliary function... but this is true of any type and their tertiary / animus functions.  FeNi develops Se to support their Fe.  NiFe develops Se to compliment their Ni.  The primary reason I'm leaning on FeNi for you, aside from my hunch about your overall energy, is that your Se seems to be supporting your Fe rather than complimenting your Ni... but I could be wrong. 

As for the P-lead effect... I think it's just your Ni and Se shining through.  TeNi and FeNi can seem like P-leads if they have developed strong Ni and Se by learning to be reactive when following their Je motivations to interact with the world.  FeNi types are even more so, because the part of the brain that seems to be controlling the rest is the right frontal lobe, and the right side of the brain is more reactive than the left.

As for the Fi 'snarl'... I'm not seeing it.  You have round cheeks and smile lines.  It means you've expressed a lot of emotion in your life, indicating Fe and Se preferences.  However, your facial expressions spread out from the center of your face (Fe) rather than pull toward it (Fi).  You also do a lot of confirming gestures (raised eyebrows and nodding) to try to get the viewer to enter into emotional consensus.  Very Fe. It's not the Te gestures of insistence that others agree.  They're softer, sort of asking.  They're also not the sorts of gestures that Fi makes to confirm that their feelings are understood.

As for the non-VR reading, you're a clear NF.  You have buckets of idealism, and a clear focus on pattern recognition and values.