You cannot use the Gita to change the circumstances to suit your convenience. You have to practice the truths that are contained in the great statements made in the Gita after realizing their inner significance. Here is a small example of this:

There was a certain hunter, a very bad man who had killed a great number of animals. His killing soon spread to include human beings. He began murdering all the people who passed through the forest and came his way, in order to strip them of whatever possessions they were carrying. When he was caught and convicted, the judge decided to sentence him to death by hanging as punishment for all the horrible crimes he had committed. It was announced that the judgment would be read in court the next day. When he was led into court for sentencing, this criminal brought with him a copy of the Gita, which he kept in his pocket. The judge declared that by 7 o'clock the following morning, he would be hanged. But now, quite boldly, the criminal spoke up, declaring, "Sir, why are you inflicting such a drastic punishment on me?" The judge replied, "This sentence is being given because you have murdered so many innocent people."
At this point the convict took out the Gita from his pocket. He showed it to the judge and said, "According to this holy scripture, Sir, I am neither the killer of those people nor have they been killed!" And he brazenly added, "How can you deny these statements made by God himself?" Well, the judge was equal in cleverness to this man. Without a moment's hesitation, the judge said, "Yes, it is certainly true that you have not killed, nor have those people been killed. Similarly, as pertains to my judgment, I am not killing you nor will you be killed. Nevertheless, the hanging will take place at 7 o'clock tomorrow morning."