#3.
No, #1. I lived most of my childhood in Jeju, so I've picked up Jeju dialect pretty hard. I use Jeju dialect + English loan-words.
#1) I know 7 languages.
#2) I speak Japanese in Kansai-ben (Osakan accent).
#3) I haven't met a single Japanese person in my life.
#2.
#1) When I speak Korean, I speak a hybrid of Jeju dialect, standard Korean, and English loan-words.
#2) I've been to Japan more than once.
#3) I've flied First Class on an airline once (or more).