This is a highly relevant thread for anyone tackling Module 63618 at FernUni Hagen! Object-functional programming is an incredibly powerful paradigm, but bridging the gap between clean object-oriented design and functional concepts like immutability or higher-order functions can be quite a steep learning curve. Reviewing complex course materials and debugging your coding assignments entirely on your own, on a distance-learning schedule, takes immense self-discipline. It actually reminds me of trying to master deep system mechanics and logic puzzles in strategic [1 player Games](https://1playergames.io/) online during my study breaks—both require you to independently analyze syntax, think ahead, and problem-solve from the ground up to achieve success. Thank you for opening this query up, and best of luck to everyone preparing for the module exam!