INFP here. Its taken a while and I'm still not completely settled but I think INFP is what I am. I am also a pretty likely 4w5.
I find the MBTI descriptions of INFP's to be way off but the Socionics EII descriptions to be pretty much bang on.
Trying to fit into MBTI's boxes lead me to try a variety of different types on for size with varying degrees of discomfort.
...and the moral of the story is, if I am an INFP then don't believe everything you read about INFP's.