The path to lasting wealth is deferred gratification, savings, and compound interest. Develop the habit of saving in such a way that you enjoy your present reasonably well and also ensure a bright future tomorrow. Save enough so that you are able to live a better lifestyle in the future than you are living today.
Reducing your desires has the same effect as increasing your wealth, but with no downside risk. Being content in life and having fewer needs enables you to be happy in any situation. And that is real wealth and freedom.
It is why Epictetus said, "Self-sufficiency is the greatest of all wealth. Wealth consists not in having great possessions, but in having few wants."
When you save and invest prudently, the benefits are deferred —but crucially, they are also compounded.
