Hello all, and @daniel1213, your stats from AdsTerra v. Adsense are eye-opening. I've seen my impressions and page views drop by huge amounts, 80% or more, over the past two years. Google has been caught "shadow-banning" various sites in the past, so not trusting them is probably a good idea.
I just installed an adserver for my sites so I can start serving my own ads where I want, when I want, without Google intervention. The app is called Revive Adserver and it is fully functional, takes some learning, but has tracking of impressions, clicks, etc. Open source, been around 20 years. I mention this because I'm sure I can do better selling ads myself than Google's pennies per day (and I mean that literally; I seldom break $1 when years past $5-10 pr day was the norm).
I just mention Revive because you can serve ads to multiple websites, and because some people here may be looking for alternatives. I'm not very techy, so it will take me some time to get up to speed, but I'll report on my progress. For now, I'm fiddling around, making ads for various pages and features of my sites and have other projects going. Anyhow, some of you may want to check out doing your own thing. The more webmasters who take matters into their own hands, the better for us and not for G.
Best wishes to all.