Hello Nachfolder. Thank you for your effort to help.
The cloudflare solution is not enough. It just informs a user that cookies are used.
According to how I understand the EU law, there has to be a software installed that disables the use of all cookies until the user clicks on a button "I agree with the use of cookies". In addition to that a website owner has to be able to provide a database of these events (user clicking on the mentioned button) when a governmental agency asks for it.
As I wrote before, I cannot accomplish that with my current coding skills.
(I am not a lawyer, the info in this post I have read on the Internet.)