You describe yourself as a Vampire on Medium, and your undead prose continually sucks the life from the Country that gave you a home, constantly belittling the aspirations of Americans who see a great future for America. How do you sleep at night? Or do you only do that in a Democrat mirror-lined coffin during day-time, and return to write your attacks upon your host country on Medium at night?
Your thesis is false: America is not in decline and its greatest days are still ahead of it: your nihilist posts say more about your own negativity than they do about America. I suggest you take a rest from writing, get better, and when your world-view is back in touch with objective reality, perhaps try commenting again on the American Renaissance we are currently enjoying.