How to be in Skaggs School when accepted into Sixth School

Colleges & Universities University of California - San Diego
2

You are confusing two very different things.

  1. Sixth College is one of the six colleges that make up the undergraduate system at UCSD. See:

http://provost.ucsd.edu/colleges/

It is independent of you major and there is no good reason to change.

  1. Skaggs seems to be a doctorate of pharmacy program. You cannot apply or be considered for that until you finish your undergraduate degree.