That it's okay to feel whatever I feel, the damaging part is acting immediately on those feelings; The feelings themselves are not wrong or bad, but it's best to go away alone or something and think about or experience or be with those feelings, or share them with a trusted friend rather than ACTING OUT THE FEELING IMMEDIATELY.
The problem is not the feeling (denial is unhealthy) but the immediate acting upon it. Much more could be learned from welcoming and being with, and learning from why the feeling is there, THEN when calmer perhaps discussing with the other party what you learned from it.
Because sometimes those feelings do mean you need to stand up for yourself or tell someone else to back off, but it's probably best to find out why first, then tell them in a way they understand what you mean.
But then again I'm often right, I've noticed I'll suspect something and it will be true.
I really trust my impulses. I think this is normal in someone with Se, or even just Pe; but it's imbalanced to constantly live in that state without analysis or judgment, or only using analysis or judgment after you've already made a mess.
I'm really good at it when in a professional state of mind, though. In the right frame of mind, my immediate impulse or reactivity works well for me, because it's more controlled, and it serves me as a great way of improvising and reading people.
It's mainly in my personal life that it can cause problems; but that's because I act out on past trauma in the present, this is the source of all emotionally disturbed behavior or abuse.