My sympathies on your recent bout of bad fortune. Perhaps now is a bad time to try and wrap your head around OO concepts -- I wouldn't work too hard on that right now, rather, I'd probably take some time off. Put the brain in neutral, relax, go for long walks, sleep in, let the body and the mind heal.

You'll know how long that period needs to be -- then you can dive into the Llama again. Good luck!