The fear that nothing will ever change is unfounded - of course things will change. That's their nature. And if they don't? That's not the worst that could happen. The worst that could ever happen would be to be separated from God forever, and He's already provided for that by saving me through the sacrifice of Jesus. Because my sin has been paid for, I have eternity with God to look forward to. I will praise and glorify Him forever because of that.