Google AdWords has changed to Google Ads, and not benefiting from it means not using all the tools in the right way.
You should use the correct extension & correct search questions. Also, you shouldn’t use the recommendations box because some options will reduce the number of people.
You can find in the link above a detailed explanation of modifying advertisements and take advantage of all of the tools that may increase the number of reaching people.
As for Ad Sense, what is the problem?