Warm up with some Liszt. Well it depends. If I'm kinda cold, I warm up with Bach, but if my hands are so cold that they're about to fall off, I warm up with some Liszt or Rachmaninoff.
Your hands are going to be destroyed in a few years.
Bach doesn't get the job done fast enough. Liszt and Rachmaninoff warms me up faster than you can say Bach's WTC!I used to warm up with scales and Czerny but they weren't getting the job done at all.
Anybody can be an effective Liszt/Rachmaninoff piano athlete striking the correct keys right when you come to the piano, but in a few years your carpal tunnels will scream in pain
Incidentally