Um ANiMA.. 221-221-222 Help please? anyone? tips? advice?

Guys. Seriously I haven't figured out how those of you with all charming haven't gone insane with ANiMA 221-221-222. The only thing I can't do except the end which I can do, it just needs some occassional luck. this 221-221-222 thing I CAN'T STAND. I sped 3 hours and during that time I only pass it like twice or thrice. I need some way of doing it reliably and I've tried pretty much EVERYTHING. I need some pro tips and and actual guide on how to do this bit eg. which fingers/hands to use how fast to tap etc. This is how I've been playing so far: https://www.youtube.com/watch?v=A5RFF0jUhjw&feature=youtu.be seriously don't watch the whole thing. I just use 2 on my right hand and tap the single note inbetween with my left hand. I just can't seem to get it more than twice in a row (if i'm VERY lucky). sooo help? pls?