P and J descriptions are very vague.
I am very serious about things that are important to me. I hate making mistakes then. I strive for such situations but at the moment they are rare. But it surfaces in my political activism, and my tendency to discuss passionately. (NFJ)
I don't care at all about things that are not important to me. I do a minimum then. I usually try to avoid such situations but in school they happen to me frequently. (NP)
What do MBTI descriptions say?
Js like order.
Ps like being spontaneous.
I think this is retarded. I hate order, and I will rather write book about why order sucks than stick to order. I think I am not actually spontaneous. I usually plan my 'spontaneous' actions in advance. I'll give a good example: I know the MBTI descriptions by heart and tick those answers that sound 'better'. At first this may sound like a perceiving activity but if you look at it closely you see it's a judging activity. I would tick the same things again every time I take the test instead of spontaneously choosing something.
How I understand judging and perceiving.
Judging means to me you take things important to you seriously.
Perceiving means to me you decide rather spontaneously which things you take seriously.
I can't relate to "I act like a robot, I do everything I am told" which some judging descriptions sound like.
What I can relate to.
I can certainly relate to both NFJ and NP behaviour. According to how much I care I act differently. If I'm very serious about it I act like an ENFJ and if I don't care I act like an INTP. My general lack of interest made me think I am an INTP 9 months ago. I was depressed then though so I wasn't able to think clearly. I am also an opponent of conventional behaviour so I may have ticked just the opposite of what is socially accepted.