The amount of cash you will earn from adsense depends on the type, quality, quantity of your posts, the number of traffic you are having and the number of search engine traffic, your number of quality backlinks as well as the topic or niche od your site. AdSense will place quality ads on your site if your contents are quality and targeted or niche based.
You should be earning from adsense if you start or are getting around 500-1000 views a day. With this, your average click-through rate might be 5 clicks per day.
If you are having 5 clicks each day from 500-1000 pageviews, it means you get 150 clicks every month.
Let’s assume, average CPC for ads served on your site is $0.15
When you multiply 0.15 by 150, you will get $22.5 monthly. You will earn more if your average CPC is higher like 0.20 or more.
If you are not satisfied with your earning, try to get more quality traffic to your site.
By building your backlinks, you are sure to get best quality traffic from search engines. I notice that sites that rank high in search engines are ones with high number of backlinks.
You also need more post and time to get more search engine traffic.
Write quality posts in order to get high quality sites to link to your site.
In essence, you need good amount of High Quality posts, High Quality backlinks and Good amount of search engine traffic, to really earn money through adsense.
If you want to make money from adsense you need to work hard to achieve the just mentioned three top criteria you need to have a quality site.
If you want to make money online in general, do not depend just on Adsense or ads.
Try to create your own product and sell it to your audience. Or join affiliate programs where you earn commission whenever someone buys from the product you promote on your site.
Adsense might not just work for you. Try other ad networks.