Janet Yellen is right. The Fed has done almost as much as they can do from a monetary standpoint. Now it's the government's time to attack the problem from a fiscal standpoint. This is what Trump is trying to do (if Congress will quit fighting against him). https://www.cnbc.com/2017/11/29/fed-chair-janet-yellen-calls-on-congress-to-adopt-policies-to-stimulate-economic-growth.html
Trading seems fun, exciting, exhilarating, etc. so it has a lot of draw to it. And many people won't dig deeper than the euphoric emotion that they feel. However, trading is MUCH harder than investing. And much of the industry is bent towards getting you to trade rather than invest.