I switched to a less intense mode and played 5-15 mins a day.
There are a lot of ghost notes in this song. I just placed them where I thought it would be comfortable for me to play and where it sounded cool.
I played ghost double strokes with a rolling gesture (middle then index finger hitting each its own pad). This was the easiest for me.
To make snare sound quiet-loud I tweaked a pad curve like this:
There is a lot of dynamics on an open hi-hat. I tried different combinations and fingerings and ended up with a single open hi-hat sound for simplicity. I wanted to use a foot pedal to control openness, but my sustain pedal was actually an on-off switch 