Your total comp might go down or it might go up. Every time you make a career move that’s the risk you take. But if you’re healthy and smart and diligent enough to be highly paid today you are in a better position than 95% of your countrymen and 99.9% of the rest of the world, no matter what happens.
Enjoy the time you have on this planet. Don’t let fear of the unknown get in the way of that.