"This Friday" is the one during the current week, provided it's currently earlier than Friday. If it's Saturday/Sunday already and I want to talk about the Friday that's only 5 days away I would say "this coming Friday" (or just "Friday").
"Next Friday" is always a week+ away. If it's Tuesday and I say "next Friday", I ALWAYS mean the day 10 days away.
If someone says "next Friday" to me and they mean the one in a few days I'll look at them like they're crazy.
"Next Friday" is always a week+ away. If it's Tuesday and I say "next Friday", I ALWAYS mean the day 10 days away.
If someone says "next Friday" to me and they mean the one in a few days I'll look at them like they're crazy.