Any of it...or it's purpose or what my goal for improvement would be....how to tell, etc...
Oh ok, the purpose is firstly identify your gifts which you already know to be ENFJ.
Secondly it is to help you identifying parts you may need to strengthen to make you more whole.
Thirdly it identifies people for you who may not speak your 'language' and aids in moderating issues which might come between you and others.
Fourthly it enriches and confirms ourself beliefs, as you were able to identify.
Fifthly if we don't do it, we become one dimensional beings.
Your 'shadow type' is ISTP, and if we were to lack attention to our shadows, under stress we will exhibit an immature form of ISTP, if you read about that type it may make you feel a little uncomfortable, because that type will rub you up the wrong way like you might to them. They would be less offensive to me, because we share the traits ITP.
It is very useful in many ways but blending both sides as equally as possible contains a form of alchemical magic like finding the holy grail, and the inner peace of understanding self and others.
We share one traits on the Inituition, so you may not follow me and my language because I am a strongly intuitive thinker who values deep thinking.
Reading each others type can help identify their gifts.
Only around 30% of the community are intuitive naturally, although we all possess each other's qualities, some prefer it more than others.
So you prefer to be ENFJ, as much as ISTP's do, but communication between you could be troublesome.
Not recognising other gifts can make people feel misunderstood.
Your goal, is to be alone more by yourself, appreciate the concrete and real, to be more logical and wait a bit before making conclusions and to exercise spontaneous non-planned adventure and fun. Relax a little because you are very driven. Turn up late sometimes, challenge your 'rules' etc.
As I said your personality type is a charismatic leader but could go even further by the recognition and strengthening of less preferred elements.
It's not natural and is hard work, but work and ongoing individuations from parental programming is very achievable. If you you look into this further, you will find yourself doing typology on kids pets countries etc. There is current research to suggest that kids will self choose careers, but the ones who may be less common might be completely mismatched their schools.
I was born in a family nest of sensate's dropped by a cuckoo bird. We did not understand each other at all.