Jonathan Ruach is helpful and interesting on Caring for your introvert. I’ve never quite been able to figure out the Introvert/Extrovert thing. Best as I can tell, I’m balanced between INTJ and INFJ. I’m very strong on the N and the J and balanced on T/F, but the E/I criterion has varied quite a bit through my life.
I think that means I’m an ambivert.
I usually like my own company (though I just love having James with me). I loathe big parties and compulsory socialising and I have to be careful with depression. Yet I’m an instinctive organiser, love learning and teaching, enjoy good conversation and sometimes talk too much. Maybe it’s to do with the difference between personality and behaviour. There are some things we train ourselves to do well, even though they don’t come naturally.