1) Build a sight-reading routine. These could be sight-reading methods, songs that are below your level, a collection of hymns, whatever.
2) Build a technique routine, to include: scales (in 1, 2, 3, and maybe even 4 octaves), chords (to include inversions with 3 notes, broken chord patterns, and cadences/progressions), and arpeggios.
3) Choose 4 'main' pieces you'll work on, one from each period: Baroque, Classical, Romantic, and Contemporary. These should be at your level, or perhaps 1-2 levels below. Work on these in little sections over the months to bring them to performance level. I'd suggest:
-Bach Little Prelude
-Clementi or Kuhlau sonatina
-Schumann or Tchaikovsky Album from the Young piece
-Kabalevsky Op 27 piece
I don't think there's much value behind Czerny as a whole, as in, I don't think it's worth buying collections and just working through them. Not that it could necessarily hurt, but I think there are more beneficial things to do.
A linguistics major who loves piano and knows too much theory/history without knowing how to play it as well as he wants to be able to.
Let's hope that changes. Taught piano for almost two years and currently working on:
"Going back to the basics..."