Getting rid of dictators typically takes decades once they've built up their power base. I doubt Trump has that kind of mileage in him, given how old he is. But the damage has been done now. Trump has proven that the famous "checks and balances" of the US system just don't work.
As for the US's reputation in the world, it'll take a long time to recover (if at all). One Trump Presidency was a blip; an experiment. A second Trump Presidency is like America saying "fuck you" to the rest of the world, especially its allies like the UK and the EU. Americans will be hated everywhere else as much as Russians are hated now.
It's only February of the first year of Trump's second term. Who knows what might happen in the next 4 years; but honestly, I think the US is done as a superpower and a reliable friend to the West. Every empire dies, and I don't think I've ever read in history books about an empire dying quietly in its sleep; it's always a turbulent process that historians can usually pinpoint to a specific precipitating event afterwards.
All that prayer and the best God can come up with is announcing tariffs, cancelling them, announcing them again, cancelling them again...