As for advertising, it is very important where we advertise.
For example: we will not advertise in places where few people or with poor use of our site.
There are no guarantees for any ad space.
This takes time, research, perseverance and most importantly patience.
The easiest way is to give up.
In any case when you advertise, you need a number of different ads in several locations.
I personally prefer the ads to click.