If you are new and trying to find an answer or way to do something it can be difficult to find the answer. But complaining that its difficult and not very well written is not going to get you the answers you want.
Ask a good question with details of what you have tried and you will get endless help. Complain its rubbish and you may as well give up.
A few pointers that many new users fail to understand.
The Docs will provide the latest up to date info.
HA progresses so fast a lot of info found on websites and youtube is long out of date, and often causes issues.
HA is very powerful and can do almost anything you can think of, therefore it will often take time to find a method that suits you.
There are almost always more than one way to do anything.
Here is good list of common issues.