You implied by claiming Xs in your type that you are using a four-dichotomy MBTI model and not functional models.
In functional terms, an XXXP type would have to be precisely equal in Ne, Se, Ti and Fi. Your IxFx type would have to be precisely in equal in Ni, Fi and Si. These are utter impossibilities from a functional standpoint. You don't have an XXXP friend; that's utter nonsense in functional terms! Even if you do value Ni>Ne, Fi>Fe and Si>Se (which is questionable in itself), all three of them would have to be exactly equal to each other for you to be IxFx in functional terms. You may not have used the phrase "exactly equal" but you implied it by claiming Xs in your type.
Even if you have multiple leading functions, they are not equal if the other positions they are in are not equal. Fi in 1 and 5, Ni and Si in 1,3,5, and 7. I stated that.
The only way XXXP could even remotely make sense is from a four-dichotomy MBTI-only standpoint, so I was trying to give you the benefit of the doubt by assuming that was the perspective you were using. Now that you're directly claiming your friend is XXXP in cognitive function terms, it's quite obvious you don't know what you're talking about. No one is precisely equal in four different functions; you would suffer constant, enormous cognitive dissonance to the point of being totally unable to choose any perspective on anything.
Or the individual would develop a perspective that integrates the opposing functions.
I would agree that it would cause mental dysfunction though. My XXXP friend has severe ADD, and tested as being in the 10th percentile for short-term memory.
You or someone else seemed to want a list of my own issues, so here are some:
I have trouble writing papers because I have a poor sense of sequence and don't know how to categorize/generalize information. Doing job applications last year I had to keep asking my parents for help on answering Yes/No questions and "on a scale of 1 to 5" questions, just because I can qualify everything, and depending on the subjective interpretation, I can answer the same question multiple ways.
I don't intuit the way to go about doing things, and I constantly need to be reminded- for months I would call my mom from college to ask her questions as far as washing clothes because I didn't know how to apply the generalized instructions to the slightly altered context.
Everything I do takes me a really long time to do, partly because there's always hesitation on how to go about it and partly because I am extremely detail-oriented and meticulous.
I'm not aware of my surroundings. I don't drive, I can't cook (I've done pasta before but if I can't follow the instructions I can't tell when it's ready), I don't take the bus.
Everything is a major project for me. Everything overwhelms me. I think if I ever had a full schedule I would completely shut down due to stress. I have experienced shut down on a pervasive scale because of something completely indeterminate that affected my mental state. I constantly need to balance my mental state normally because, as I've said, everything I let myself absorb affects my perspective.
I would love to hear how you came up with this as your own functional order. Let me guess--the cognitive functions test told you?
No, I said according to the pattern that would be my function order.
I tried taking the test but I stopped because there was too much ambiguity in the questions for me to answer, and I felt that any answers I chose would be arbitrary. Like I said, I'm terrible with generalization.
What a load of garbage. You are not using all the patterns simultaneously. You are not some omni-type with perfectly even perspective in all areas. The very framework of the theory disallows this possibility. Either reject the theory entirely and move on, or stop contradicting its most basic terms in your self-assessments based on the theory.
Whatever terms you are referring to are not the same ones I see as basic to the theory, or I don't see my theory as contradicting them but addressing them with a qualification.
Look, I'm done. I've tried to persuade whoever my audience is, and I failed. I know now that I need data or something before trying to present a theory like this.
You're not going to persuade me that I'm wrong about what type I am, however. I'm guessing you're going to respond to my response, and I'll let you have the last word. Please don't take my silence as effective complicity with what you're saying. I've come to the realization that continuing to argue my point isn't getting me anywhere.