When I am stage planning I break each stage up into sections and then assign those sections a marker. That marker is the part of that section that is the hardest. I quickly store the easy parts of a stage, things that are more muscle memory. So instead of thinking of the stage as one big mess I can focus on each part individually. It helps with that overwhelming feeling you can get when you come across a big stage. When I am on the line I simply step through each section remember my markers and execute.