Well Ellie, I know you are the girl with the knowledge. Time to break out the tools and build the ultimate closet. Best is to lay it all out, try it all on and see which outfits are your favorite. See which you wear most often, then determine what to keep and what to donate. Keep your favorites close at hand and your more memorable ones can be packed away in totes for special times.
I myself wear more things daily now than I used to, so I just traded it out for my male cloths and that took care of space issues.