I got INFp, but I am not one. But it was hard for me to answer for all those questions. As I know, a lot of times people use filling tests some other functions instead of their first two. One more thing is that they try to look, when takeing the test, as they concider themselfs to be ideally. Which means they have some sort of a role inside of their heads. When answering, they try to fit into this role.

this meme of this forum has won the attention in my head again.