I'm really not though, the best I've ever accomplished in a mainline Touhou game is a 1cc on normal. With that said... I did just get a new high score of 2841.
There's definitely a significant element of luck in this game, with bomb drops being random unlike in the main Touhou games, but of course you can easily squander amazing rng if you don't play well enough. There's also a very interesting level of strategy in how you position yourself, you have to juggle safety, hitting the right enemies, and most interestingly, setting yourself up to be able to move later to get Reimu out of danger. I feel like I still haven't really mastered it, to be honest.
