What does wasted time mean?

The author of this poem is Wu Qingdi, a poet of the Qing Dynasty. The original poem is as follows:

It should be noted that when I was young, Ling Yunzhi once promised to be the best in the world.

No matter how many years pass by, there is still no gain in fame or fortune.

Translation:

Looking back on the ambitions of my youth, I was determined to be the best person in the world and achieve the best results in the world.

How did you know that time has been wasted in vain, and there is still no gain in fame or profit as before.

Extended information:

In the helplessness of time passing by, the poet developed a sense of sadness that his old age was approaching and his ambitions were hard to achieve. He wrote everything he could not achieve in real life into his articles and expressed them through poems. As time goes by, the poet laments that he is getting older and has long been unable to do what he has done. His previous ambitions and pride have now disappeared, making him extremely sad. What makes him sad is not that he is getting older and facing death, but that his ideals and ambitions have not yet been realized.

The Qing Dynasty was also a period of alien rule. The poets belonged to a group of poets who were survivors from the Ming Dynasty to the Qing Dynasty in the early Qing Dynasty. They were dissatisfied with the rule of the Qing Dynasty and attempted to resist the rule of the Qing Dynasty and restore the Ming Dynasty. But there is no hope of restoration.

The poet was influenced by traditional thinking and patriotism and wanted to save the world and the people and restore the Ming Dynasty. However, it was so difficult to overthrow a dynasty by oneself. His ambition was not only difficult to realize, but also his own ambition. , and the ambitious ambition to restore the dynasty is difficult to realize, which is a greater ambition.