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One of the reasons is why in less than 200 years they have managed to create something that others have not succeeded in many centuries:
Country education scheme, features, and.. luck
The first thing that is very different from other "young countries" is that in the USA people began mass migration when the world moved to the industrial stage of development. This made it possible to create the economic facilities (heavy industry, transport, armaments, ....) much faster than in previous periods.
Secondly, people went to the USA who COULD NOT REALIZE themselves in the "old world", where there were inconvenient laws, centuries-old traditions, the impossibility of breaking through "to the top", etc.
But they had ideas, experience, and faith in the "new world". which they eventually built. The country was actually created from a "clean slate", there were no obstacles, centuries-old dynasties, obligations. Laws were written almost "on the knee" and instantly adapted. Resources allowed to raise the industry. The presence of BRAIN who came to America from high-tech Europe of those times. And by the end of the 19th century, the "new world" became attractive for everyone who wanted to realize themselves and become what they could not become in the "old world". Very smart, I would even say cunning, financial policy, historical events - also helped the United States to take its place. In Europe, from the beginning of the 19th century to the middle of the 20th, there were terrible wars, which led to degradation and destruction. There was actually one civil war in the USA, after which peace was fixed for centuries. Plus, quite adequate neighbors from the north and south and geographical remoteness for enemies ....