You’re off to a great start. Just do what turns you on. The science/humanities combo is a great one, and I wouldn’t go overboard on the STEM side.
More and more, interdisciplinary programs are becoming commonplace. For example, Stanford has a joint major in English and Computer Science, and another in Music and Computer Science:
https://undergrad.stanford.edu/academic-planning/majors-minors/joint-majors-csx
https://english.stanford.edu/csenglish
https://music.stanford.edu/academic-programs/undergraduate/current-undergraduates/joint-major-program-csmusic
Penn has a joint major in Digital Media Design combining engineering, communications and fine arts:
http://cg.cis.upenn.edu/dmd_program.html
The also have dual-degree programs where you could combine business with science, engineering, or international studies. Your language background is also a huge plus, and I would take SAT IIs or APs to document proficiency if possible. All of that makes you look different, in a good way.
You shouldn’t do it to impress colleges, but you will look a lot more interesting going into science with a strong humanities background than just by just going the “classical STEM pathway”.