I've been running a website for about a year now. My adsense earnings were steadily increasing month for month. I reached my peak Three months ago were I earned about $450. I felt very motivated and decided to change the very ugly layout of my site. So I improved it, did a full make over. But I kept all of the old text content. It turned out to be a big misstake. The upcoming month my earnings halved to about $220. But I still had almost the exact same amount of visitors, my rankings didn't decrease. And the previous month I earned just above $150. Still with the same amount of visitors. People say that the niche heavily affects the CPC. Which it of course does. But looking at my most important top ranking keywords I see a recommended "Suggested bid"(CPC) of $5 in the adwords keyword planner. And looking at google analytics, about 70% of my visitors are from English speaking countries. Whereas US top the list with 40% of the traffic. I have about 8200 competing ads visible in my Ad Review Center, so the competition should be high?. Basically I'm seeing some really bad earnings and I don't know how to move forward. I've tried mixing with some of the ad serving settings, blocking some of the ads in the ad Review center, changing ad locations etc. Now I don't know what's wrong or how to move forward.