Notes

First of all, (in my opinion) being an INFJ is indeed hard.

First of all, I think that INFJ are walking contradiction.
Our strongest cognitive function, Ni (introverted intuition), make us know what's best for others more than they know themselves. We try to make everyone around us happy, but by doing so, causes a great deal of stress for us at times. We often forget that we ourself are important too, so they said.
They also said that we are able to think very logically, yet we won't hesitate to discard our logic if our intuition says something different.
I think this is true.
And our Ti (introverted thinking) make us a perfectionist who obsessively searches for right everything (i.e: time, places, etc) XD
I also think that we are very independent person, yet we also yearn for companionship.
Then, our Fe (extraverted feeling) make us an empathic-energy-absorber from anyone. Like, we are able to mimic other's feeling without any difficulties. I would say this is a blessing and also a curse though.
And, because of our Fe, we ourselves have greater difficulty when it comes to ourselves. |'D
Not that we can't, but we usually deal with our problems using our Ti and Ni.
So then when we feel that we're in emotionally taxing circumstances, we often turn to others for support (n)or directions.

I also thought that INFJ are harsh on theirselves. We often trapped in self introspection, which drains our energy even more.
Thus why, we have a great time dealing with criticism, or our good intention are being questioned by (idiots /NO) others.
Not that we didn't take criticism, we are open to those, but we just have a great time dealing with it (or the harsh one).

Second, i think we often see ourself as socially unfit. Like, as it had been said, we're the rarest type in the world. We feel like we don't fit, (n)or don't belong to just anywhere. That's why, we often push ourself to become our ESTP shadow, which ends up consuming more of our energy.
Sometimes when we have a rather rough day, we also become our ESTP shadow, in a rather negative way.

When we lost control with our Se (extraverted sensing), we usually "throw" them out with extreme anger, and usually feel like wanting to escape reality and suchーmore like acting childishly (they said). We also tend to act excessively (in physical sensation)?
For example, maybe eating too much, or spending too much money.(??)

I too, feel that i had a great time dealing with this inferior function (Se). Still trying to get a grip with it though. XD

Third one, I believe that we are also a forgiving person, but until some certain point, we shut down and we can't do it anymore. (the door slam thingy?)
After that, we could just be the coldest person alive. Lol;;
We don't feel things as much as people thought we do, but when we feel, we feel deeply and fully.
For me, this is also another blessing and a curse at the same time. |'D

Alright, i guess that's that, for now? owo
Because i'm afraid if i continue it'll be a hell long note XDDD
Pardon my enthusiasm.
And um, i'm sorry if there's some mistake. Or maybe some things you cannot relate to.
All of these is just in my opinion nor my perspective, and it could be wrong too. :>