You are yourself and you can do whatever you want. The stats are just stats. Just because no one has seen a black swan before, does not mean black swan doesn't exist. It is foolish to think that it is impossible to achieve something and give up even without trying just because of the stats.
What does "America" have anything to do with this? You could complain all day long about how bad of a situation you are in, or you could do something about it, and that's a fact.
How is something as common as "positive thinking" unique to American? I don't understand how you picked up that idea. It's like saying "being courteous to elders" is uniquely Chinese.