Yup. That's it. If you were hoping for another "miracle" serum or oil to add to the big basket of products under your sink, I'm sorry to tell you that this is the only guaranteed way to have long (natural) hair. We have become such an instant gratification society that people forget the value and effectiveness of good old fashioned patience. There is a Zen quote that is a favorite of mine: "Sitting quietly, doing nothing, spring comes and the grass grows by itself." It is the exact same thing with your hair. I have heard of people going so far as to put anti-fungal yeast infection medication on their scalp in attempts to make their hair grow faster, when bottom line it just takes patience. There is nothing that you need to do or add, just let nature do what it does.
I view my locs as a life lesson in patience; that's what they represent to me, and what I hope my children have taken from their own locs. People ask us "Oh! How did you get your hair so long and pretty??" and my answer is "Nothing." "Nothing" is an oversimplified answer, but the real answer is not much more complicated: it's patience. Patience is the reason why I am a big advocate of the Big Chop method of transitioning to natural hair. Patience is why I am not an advocate of "loc extensions" as a way of starting locs. It is hair, it WILL grow back with no effort or intervention on your part (besides, of course, keeping your overall health in order). Stop obsessing over the length of your hair and one day you will look up and realize "Wow.... my hair is really long."
So, save the Monistat for your lady parts, leave the new miracle products on the store shelf, and put away your rulers. You already have everything you need to get the long, beautiful hair that you so desperately desire....Patience.