All the pieces start falling into place, and become secon nature. Generally, it takes hands-on experience, watching the L2s, and seeing how the volume and trades affect the PPS. After a while, you start anticipating where things are going,just by watching the money flow.
Keeping an open mind is the best way to get there quickly. You'll be great!
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If you take anything I say as advice, you're crazier than I am.