https://10fastfingers.com/user/1792760/
I have reached 38wpm today. It is still not enough but will probably get better soon.
I had some problem with switching because I decided I will type with qwerty when typing in Japanese. and i switch A LOT daily. I'm still getting confused sometimes.
I also decided to use my custom extend layer on caps lock (mostly arrows and backspace) and I have one dead key for symbols between "o" and enter.
Colemak is comfortable so I probably won't switching back. I am still not sure what to do about the Japanese.