Ruby is not that different from python. The syntax is almost the same, but you don’t have to worry about the indentation.
Really, no computer language is hard to learn.
If you think about it — every language has modules, functions, if/then/else, case and expressions. Some are object oriented too — which is just an instance of a module - hah!
Learning a new language? Just understand those parts — the core parts of a language is easy.
Then bookmark the documentation for it’s standard library. This will be it’s String, Enum, Integer, Array and other libraries. You don’t even have to remember these, just lookup the stdlib for something you need to do and you will find the function/module/class to do it.
Fortunately, ruby has most excellent documentation, so it should be a breeze.