Have you tried Spaced Repetition Software, like Supermemo or Anki?

I used to hate memorieation (who enjoys being forced to repeatedly dona boring task?), but eventually I realized that I could memorize some stuff just fine, and that if I had just memorized some stuff already (like german grammar rules) instead of whining I would have saved time in the long run.

Eventually I started relying on Anki and now memorization is more like my secret weapon...