I am an INFP and so surprised that I relate really well to the outcome. Incredible! Two weeks ago I did that test on a different website - and turned out to be an ESFP (and could partly relate to it, too). Here is a great overview for both on 1 page
INFP is short for Introverted iNtuitive Feeling Perceiving (Introverted Feeling with Extraverted Intuition).