I’m reading that any Americans name written in capital letters is a corporation not the live person in flesh and blood?We’re trained to believe its us

You’ve either misunderstood what you’ve read or someone is prancing you.  Your name in caps is just your name.  If you want to create a corporation you’ll have to go through some formalities like filing paperwork and paying fees, and the entity’s corporate status will be indicated by something like “inc.” or “Corp.” at the end of its name.