I agree with your typing under functions: You seem like an ESFJ/ENTP hybrid, like Brain in a jar (although you are closer to ESFJ). However, I"ll be discussing dichotomy mbti here.
I don't see INFJ necessarily, but some sort of FJ, most likely NFJ.
First, regarding P/J,
Although you appear spontaneous, scattered, and bubbly on the surface, you seem to have a certain restrained and focused energy deeper down. You strike me as having strong convictions and a more rigid, ordered outlook.
It seems that you have a strong devotion to the wellbeing of other people, even to strangers, and this strikes me as an FJ quality. You also seem to be rather dutiful and conscientious, which is closely related to the J preference.
I am not too sure about your N/S preference, but I'm leaning toward N, because of your predilection for the fantastic and the unconventional. Your utilitarian and universalist outlook (feeling strong sympathy for everyone around you, including those that you have never met), strikes me as more of a NFJ trait than a SFJ trait. SFJs are likely to be more practical and down-to-earth and less concerned about people that they have never met.
As for I/E I have no opinion either way, and can see you as both. My impression is that you are somewhere near the middle.