So we have it down to ENFP and... ISFP? Two pretty random types.
To get E/I out of the way, there's a sure fire way of telling how.
Do you get energized from being around people? If so then do you release then energy that you get from this by being alone? If you said yes to these you are an extrovert.
On the other hand, do you get energized from time alone? If yes then do you release this energy from being around people? If you said yes to these then you are an introvert.
And yes you are cheating yourself just by thinking S means art, caring about your appearance and about nature. I do art, I do in fact somewhat care about my appearance (but I know other N types care a lot) and I love nature. Does this make me S? No it doesn't.
Where are you reading about all of this? You need to do some research on what the letters mean for real. Here are some good sources:
I VS E:
Extraverted or Introverted Preference
S VS N:
Sensing or iNtuition Preference
F VS T:
Thinking or Feeling Preference
P VS J:
Judging or Perceiving Preference