I completed RTK about two years ago, kept up with reviews for about 6 or 7 months, did UBJG and some other grammar books, read and had a basic understanding of some manga, etc... And then fell off the wagon due to college.
I spent the weekend relearning the kana, ordered another copy of Heisig. The first time I did Heisig, I was so motivated/impatient to get through that I spent most of my free time on it, and got through in 18 days. Since I've seen it all before, and that due to interesting circumstances, I have nothing but free time for the next 8 weeks, so I figured I could probably do the same ~115/day rate, and not go crazy or anything.
So I got started earlier today, at about 6pm, intending to stop no later than #104. And I hit 104, and figured I had a little more fight in me, and no academic obligations, so I was going to try to go through another section. And then another. And then another. And then I realized I hit the end of the sample pdf, at #276, with a 90+% correctness rate. (Of course, the real test will be in a couple of days, when the reviews start pouring in...) And even now, I could do more, but I'm going to cut myself off for the night. Still, it's really satisfying, after a three month period of failing everything I tried my hand at, to be *good* at something again. And it's really exciting to be back to Japanese.