KaniWani is good for some additional upkeep on your vocab. I have mine set to show only words I have gurued (keep down the massive amount of daily reviews)
After starting this supplemental vocab work I was able to notice the words I had the most trouble with. For instance the days of the month and traditional japanese counters.
I then opened a word document and using Google IME began to type them out in sequence. Just like a kid writing a word over and over again they are learning in elementary school. It worked.
Also if you use the SRS leech breakdown plugin you can easily see where you have a problem at. If you notice you have a large volume of leeches, you need to stop learning new vocab and iron out the current content before moving on. Slow and steady wins the race.