I'm in a similar position. I have around 500 kanji reviews at this point (I took a really long break.... :-). I'm at around 1400 kanji. I rarely feel like using Anki. I think it's a great program, but I'm in a rut.
What I do is I force myself to do reviews in tiny chunks. Try to just do reviews maximum 30 minutes a day, in 5 to 10 min chunks. After that review chunk, then take a break and do something else. You can even set a timer to remind yourself you should do some reviews again. This way, you know you are done after 30 min total, and 30 min is not that much time at all.
I also bought a couple Japanese Graded Reader series, which are expensive, but I really like them. Try reading some Japanese at your own level. It made me feel really good about myself! (here are some free suggestions:
http://forum.koohii.com/showthread.php?tid=4133). You might try the Hiragana Times hiragana blog, because the articles are extremely short.
I also enjoy thumbing through my textbook, so I've been learning new vocab and doing exercises from that to keep me going. But since I'm sick of Anki right now, I'm not putting all the vocab in there until I'm ready.
I suggest getting your reviews under control a little at a time. Then, slowly start adding more cards (just 5-10 a day to start). There's no harm in going slowly. You could even do 5 cards a day and take it really easy while learning some grammar and vocab too. By the time you finish RTK, you'll probably finish your textbook at the same time.
Don't push yourself too hard, otherwise you'll burn out. But you may need to force yourself a bit to get going :-).
And another option: RTK may just not be for you. Try another kanji method.
EDIT: Something else that has helped me do reviews faster: If you can't remember a kanji after 10 secs, just fail the card and move on. Go back later and relearn all your failed cards.
Edited: 2012-11-21, 10:06 am