How much time does the universe need to bring about the material manifestation of what you have claimed inwardly? The answer: None, it is given instaneously.
Do your manifestations not happen that quickly? Dr. Holmes would tell us that we need to engage the method of mental equivalents correctly and fully and to believe that the fulfillment of our desire simply hasn't happened yet. He would pat us on the back and look attentively into our eyes and remind us to rest faithfully in the feeling of fulfillment. Faith, like love as Shakespeare describes it, "bears it out, even to the edge of doom," and various spiritual writings tell us that our faith in "the substance of things unseen" ( Christianity ) must be unwavering.
Yet there are situations in which the outer fulfillment seems to take an a-w-f-u-l-l-y long time in coming, if indeed it is coming at all. I understand and sympathize deeply with how challenging this can be. There are many useful things Science of Mind and Dr. Holmes would have to say about this, the first of them being that merely noticing that an outer manifestation hasn't taken place creates a counterintention. By allowing the apparent void to occupy your present awareness you disrupt the relief, peace, and contentment of the alignment you were directing.
To assist you in carrying out the process of creation & manifestation correctly and deeply choose to believe that the fulfillment of your claim in consciousness just hasn't happened yet. Lean into those feelings of expecting it to be done; imagine that creative waves of energy are dipping into pre-manifest matter (through intending) to select the perfect version of Reality just for you! Have the unwillingness to settle for less than what "the eye of the beholder" can create.
Intend everything today in a context that it is already under way, already flowing to you,
The light of Spirit rushes throughout all creation, an everywhere present,
unlimited intelligence with the ability to apply that intelligence wherever
it is needed. There's nothing that can impede the perfect revelation of
these spiritual energies in joyous and life-affirming ways. And this
intelligence has been made manifest as me, in me; I am the creation of
Spirit that thinks, chooses and decides!
I've been given a great gift; the ability to create my experience of
everything in life simply by changing my thought. Knowing the power of this
stream of consciousness within me, I pay close attention to what's going on
in my mind, listening intently to my intuition, choosing again if my inner
talk is not the best of the best. I think clearly and set a clear intention
to live from the best of myself, always. And I do. And so it is.