I did it! A few days ago, I had over 900 reviews waiting for me. I’ve been putting Wanikani and learning japanese on the back burner for a time (two months, I think) and it felt almost insurmountable to come back. I was thinking of resetting Wanikani entirely and start over, but now that the pile is down to zero, I’m very relieved I didn’t.
If you, too, have a massive pile of reviews waiting and can’t remember most of it, just go for it. Take it on slowly. If you can’t remember something (kanji, radical, vocab, mnemonic), click it and take the time to really relearn it. I found that relearning one reading, for example, made it easier to remember other readings as well.
For me, it was like opening a flood gate and I’m now more excited than ever to learn japanese.