Its still not so simple...
It is that simple.
It is difficult, not complex.
I wasnt saying Fi is unshakable, but with Fi you at least have somewhere to stand your own personal ground. you know how things make you feel, read up on how Fe works, in conjunction with Ni its kind of hard NOT to be sloppy with my Ni.
And also, this negative thought process (which usually isnt always negative its quite neutral) just shows me the answers, emotionally how I deal with them has nothing to do with how sharp Ni is... and everything to do with how my emotions work.
I just need to shield my emotions a bit more from my Ni since its driving me crazy! I cant be alone with my thoughts its driving me insane.
Neurosis isn't MBTI-driven. Check out SLOAN/Global 5: it's an MBTI analog with four attributes that map more or less to MBTI, and a fifth attribute of neuroticism. One's calmness or lack thereof is
not a part of MBTI, but more a part of life experiences and ability to handle the world around you.
The way to teach yourself new habits is to practice them. The primary one to practice is patience. Ni can give a very strong J vibe for Fe or Te. We want things
resolved,
now. As long as it's still hanging, we want it resolved.
What one ends up learning to do is to define that which needs to be resolved and can be resolved. There is a desire to have a level of control where everything you wish to be resolved is resolved. What happens, however, is that you eventually confront reality, and you don't have the power/control to resolve things. If you accept that fact, then the desire to control it starts to ebb. If you don't accept that fact, you will continue to freak out.
The
way I taught myself to accept that fact is to treat things like my boulder example. I resolve, within myself, that when a boulder is within reach, I will take action to evade it. Then I simply stay aware. Usually, no boulders arrive. Sometimes one or two come my way. But I don't take action until it's time. My
resolution is to decide what I will do should a predicted circumstance occur.
Or think of it like hitting a pitch in baseball. Part of your control is to wait until the ball is over the plate, within reach of the bat. If you swing too early, you miss. If you swing too late, you miss. If you swing when it's outside your strike zone, you risk a bad hit.
Ni's superpower is that it can make insanely accurate predictions. That's the part of Ni you want to develop. If you entertain every random thought (by entertain, I mean chew on it like old gum that has long ago lost its flavor), you are training your intuition to suck and make false predictions all the time. The answer is to use Fe (yes Fe!) to evaluate your intuition and make sure that it is saying something valid.
I should in full disclosure say that it is very easy for me to overthink things. It's just how Ni is wired. However, it overthinks the MOST when something is new and unfamiliar. It is by becoming familiar that the overthinking stops ... it eventually becomes "underthinking" ... you just "know." So, right now, all your endless ruminations of what might happen is simply unfamiliarity with new things. Ni is trying but failing to make predictions. Train yourself to make good Ni predictions and your thoughts will become much more calm.