I'm an INTJ who had learned to play the extrovert ... I'm over 50 now but still getting (technically) stronger. My ability to pull all-nighters and to particip

I'm an INTJ who had learned to play the extrovert ... I'm over 50 now but still getting (technically) stronger. My ability to pull all-nighters and to participate in protracted death-marches has declined but now I'm smart enough to avoid those situations.