Thank you for the tips.
Do you read any grammar books? I read Tae Kim’s but I think it’s hard since I don’t know many of the kanji in the book yet. I might have started too fast, I’d better slow down now. What is ghost reviews?
My head hurt when I first did. Had 100+ reviews at that time and it took me 1.5 hours to zeroed them.
But it gets faster each day. Still had some verb conjugations wrong. I should study more on that area.
I used KW, and KameSame at the same time to reinforce kanji production which I think lacking in WK. I think WK is very slow right now due to that many repetition. I got myself into N4 already, maybe I’m just bored waiting for new reviews to come up. 
Just zeroed BP. But still can’t remember the new lesson for N4 I had yesterday.