Hello there!
When I've looked through the internet on what to start with Adwords (earning money ofc), I saw that almost every article is outdated. So you gotta go through all the forum links, case studies (even outdated), compose tons of information and go with your advertisements. Nothing is better than own experience.
You can ask most of the questions here, of course. However, to get the answers you need to specify it in the most detailed way and you must also understand them yourself (after reading tons of articles its much easier). I got many very very valuable answers on this forum that I didn't see in any article I've read.