What is the best way to learn Kotlin on your own?

Question

Kotlin

Not familiar with java, not with kotlin. I know the basics of C++, Python3, HTML5, CSS3. The problem is that there are courses in youtube where I work in Android Studio and in compilers, AS has a graphical interface, but compilers do not. What are the best courses to read to learn a language? It also does not matter if the course is in English, the main thing is to have subtitles. And, of course, advise the course, please.
PS Do not advise paid education (books) there is money, but there is no desire for it.

Answer 1

Come up with a project for yourself and drink. Set deadlines, break it down into stages.

Answer 2

You can take Intellij IDEA Community Edition.
Everything you need is there.
Well, if only, which plugin will ask you to install.
Otherwise , go to Kotlinlang.org and try the examples.
If you don't mind the money, you can buy Kotlin in action . But it's not obligatory