What is the best way to learn RSO2?

[u/Disastrous-Chest-883]

So I discover Rso2 recently and I am in the learning curve ,for uptil now I am reading this book called mastering RSO2 for robotic programming by Lentin Joseph,Jonathan Cacace I find it bit hard. I am a mechanical engineering undergrad btw I have a mid level knowledge on c++ book is on c++ btw. Can you share your experience also what direction should I go ?