Bro, It's not working anymore.
It's totally illegal, unethical and forbidden.
Make sure to stay out of it as much as you can.
Not to forget that Google AdSense CPM method is just another name of Google AdSense Loading method.
So, Google AdSense CPM method is just like Google AdSense Loading method or put it more bluntly, It's just using proxies and clicking on ads just to get some revenue unethically.
Incase you want to know more about it then you'd simply tap here.