Taking extra AS subject in A2 level?

Abis19060

I am currently an A2 student just starting the last year of high school. I took 8 subjects in Olevels, including English, Pakistan Studies and Religious Studies and Urdu Language and 3 Sciences and Maths. I took 4 AS level subjects including English Literature and Language(dropping in A2 level), Maths, Physics, and Computer Science. I intend to major in Computer Science or Architecture in college. Do you think I have enough "diversity" or WIDe range of subjects in my choices or should I take an extra AS level subject (Sociology or Psychology most likely) to make my choices more balanced.
I'm asking this mainly because I plan to apply to US colleges and they like to see a mix of social sciences, life sciences, maths, language and arts subjects throughout high school. Do you think I can easily manage A-level subjects and one AS subject like Sociology in my final year?