She could not command her attention as she wished.

If Mr.Crawford remembered her message to her cousin, she thought it very likely, most likely, that he would write to her at all events; it would be most consistent with his usual kindness; and till she got rid of this idea, till it gradually wore off, by no letters appearing in the course of three or four days more, she was in a most restless, anxious state.
At length, a something like composure succeeded.

Suspense must be submitted to, and must not be allowed to wear her out, and make her useless.

Time did something, her own exertions something more, and she resumed her attentions to Susan, and again awakened the same interest in them.
Susan was growing very fond of her, and though without any of the early delight in books which had been so strong in Fanny, with a disposition much less inclined to sedentary pursuits, or to information for information's sake, she had so strong a desire of not _appearing_ ignorant, as, with a good clear understanding, made her a most attentive, profitable, thankful pupil.

Fanny was her oracle.