If you want to manage your own portfolio, get your own read on the economy, says Jim Cramer

Hey, one more thing. We talk about the Federal Reserve like it's all powerful. I know.Look, I'm guilty of this myself. But while the Fed can make things better or worse, at the end of the day, we still have a market economy. And markets are inherently boom and bust creatures.Now, you could have the most Fed chief in history. Uh they still wouldn't be able to stop a truly terrible recession in its tracks. So, if you want to manage your own portfolio stocks rather than just sticking your money in an index fun ...