Jim Cramer tells investors to 'stay the course' even when it feels tough. Here's why

1. S&P 500 closed at record highs amid a weak inflation report. 2. Cramer advises investors to 'stay the course' despite geopolitical concerns. 3. Negative investor sentiment can lead to missing market rallies. 4. Recent political events shouldn't deter investment as companies remain profitable. 5. CEOs are adapting to challenges, ensuring robust company performance.