"...the day-by-day, step-by-step campaign of the Professional: preparation, order, patience, endurance, acting in the face of fear and failure - no excuses, no bullshit."

You just jump into it.  Whatever it is.  No worries.  Healthily-alarmed or alert, rather, but focused and on point.  You'll figure it out along the way.  There's no indication as to how soon/long it will take, so preparation and endurance will prove to be essential.  Luck rewards and favors the prepared.  Putting bullshit aside and orderly managing your time in order to make sure the work, your work, gets done, is key.  Anything & everything under the sun that stops you from it ... whether a legit reason or not, is just that ... an excuse.