You can start off at Roman Numeral X.
It would simplify things so much if new comers to the book started off here.
Mr Kelly said in 1-E: "The only real short cuts are more and more know-how."
To answer your question, the fastest way to be consistent is to obtain more and more know-how.
It is only when you know what you have to do, can you practise what you need to practise so that when the time comes for you to do what you have to do, you can do what needs to be done.
I started at X. Read the suggested pattern in two days. Have reread the book several times. I have a lot of know how in my mind but like I said I'm in "incubating" stage, I have mind memory but no muscle memory yet. Kind of hard to break old habits, you know?