I wanna create new apps for earn
Earning apps are not allowed. But make an app which does something special and add an ad.
Here you find tutorials
And here you get explained how to ask a question on this community.
Eraning Apps will be rejected from google because its not allowed to do this. Same is if you eran to much with an app admob will close you account. Ads are here to get some money to run the server or anything else for the app but not for to get rich.
And user will not user a app if after each click or each screen are banners videos and so. Think of you do you use apps where you have a lot of ads.People can remove your ads with a apk what decompile your apk and delete admob. And thats it a app without any ad.