Because you are asking wrong things from God, only gold, worldly luxuries or fame, that is why God does not listen to your prayers
Ramakrishna Paramhans used to say:
Pray to God that your attachment to such transitory things as wealth,
name, and creature comforts may become less and less every day.
Can you weep for Him with intense longing of heart? Men shed a jugful
of tears for the sake of their children, for their wives, or for
money. But who weeps for God?
Swami Vivekananda prayer to Kali
One day Narendra requested Ramakrishna to pray to goddess Kali, the
Divine Mother, for some financial welfare, which was the immediate
need of his family. Ramakrishna listened to his request and told him
that day was a Tuesday, an "auspicious day", asked him to go to the
temple in the evening and pray it himself Ramarkishna also told
Narendra about the mother goddess: She is Knowledge Absolute, the
Inscrutable Power of Brahman and by Her mere will She has given birth
to this world. Everything is in Her power to give.” **Narendra then
believed the words of his master and decided to approach mother Kali
and pray to her to rescue him of his financial problems.
First attempt to pray for financial welfare
Following the suggestion, at 9 o'clock in the evening, Narendra
prepared himself to go to the temple. As he entered the temple and
looked at the image of Kali, he was overawed with a great feeling of
devotion and love. He went to the temple of Kali and stood in
front of the idol, bowed to goddess Kali in an "ecstasy of joy" and
started repeating her name. Standing before the Divine Mother he felt
she was "living and conscious, full of divine love and beauty". He
prayed to the goddess for divine knowledge and devotion, and for her
eternal divine visions but forgot to pray for financial welfare for
which he had come.
Second attempt to pray for financial welfare
When Narendra came to Ramakrishna, who was sitting outside the temple,
Ramakrishna asked him, "Did you pray for your family wants?". Narendra
was puzzled and confessed that he had forgotten to do so. Upon knowing
this, Ramakrishna asked him to go to the temple and pray for the
In accordance with Ramakrishna's suggestion, Narendra went to the Kali
temple once again. Like the last time, he stood before the idol of
goddess Kali bowed to her and started praying. He prayed— "Give me
discrimination and divine knowledge. Grant me mother your unhindered
vision", but, once again he forgot to pray for his family wants.
Then Ramakrishna admonished him saying “how thoughtless! Couldn’t you
restrain yourself enough to say those few words? Third attempt to
pray for financial welfare
Narendra came back to Ramakrishna, who once again asked him if he had
prayed for financial support that time. Once again, Narendra answered
in negative and confessed that he had forgotten. Ramakrishna asked him
to attempt for the third time to pray for his family's immediate
Narendra went to Kali temple for the third time. He tried to pray for
what he was suggested, but started feeling ashamed of himself for
attempting to pray worldly and material things. So he returned to
Ramakrishna without praying for any kind of financial welfare.
Ramakrishna was pleased to learn that his disciple's spiritual
inclination and did a forecast that Narendra's family would never face
lack of essentials of living like food and clothes. Finally
Narendra in his own words said " I Had To Accept Her At Last!". It was
the end of his six years of "hate of Kali! And all Her ways!
Following this eventful revelation of goddess Kali, he would say, "I
can not but believe that there is somewhere a great Power that thinks
of Herself as feminine called Kali and Mother".