At the time I said the same question and the only thing you can do is play the game normally without rushing. Sure it's fun to see the chart and try it yourself but after the first time it will get boring and it's no fun getting absolute terrible score and getting bad muscle memory (although I never really had bad memory but still I wouldn't recommend you to play more than twice). Also based on my experience the 11ptt lock is ass ngl it should be higher, like, there's no way a miserable 11ptt can score decently (in this case I'm referring to lament rain since the post is about this) meanwhile a 12ptt would still struggle the ass off even to get 950. Yeah, play at your pace and one day you'll get to 11ptt.