HS Senior Schedule for Aspiring Yale Student?

Hi everybody--unfortunately I'm struggling with w/choosing my classes for next year just like everyone else--I want to get into Yale (my dream school) or a T20 school. However, my school is very career-oriented so we can have 2 class periods worth of an internship (which is, unsurprisingly, a really popular option that a lot of people are signing up for). I'm not sure whether to do an internship (hopefully at a law firm or City Hall) or to do dual credit electives. I want to major in Public Policy/International Relations/Political Science -> work as a civil rights lawyer.

Would dual credit or an internship hold more weight in terms of competitiveness? Also, these are my currently requested classes (7 slots per semester):

Required: AP Literature

Required: AP Biology

Required: AP Stats

Required: Pre-Calc (Dual Credit)

Required: Gov/Econ (Dual Credit)(able to take over the summer)

Elective: Chinese 4 (Dual Credit)

Elective: Sociology/Psychology (Dual Credit)(able to take over the summer)

Thanks!