I praised the ZUN! \[
]/
... I was also kinda busy that day so I laid the smack down on some Lunatic level COM's in ULiL.
I played EoSD for five hours straight. I still cannot 1CC Normal.
I'll give you the advice that I received long ago that helped me immensely to 1CC EoSD... ReimuB... that is all.
It's tempting to use ReimuA due to her homing amulets but by the endgame they are simply not powerful enough to dispatch Sakuya and Remilia quickly enough to avoid you having yet another stupid death.
My 1CC on normal came a few weeks after practicing ReimuB for awhile. Her needles are more powerful so it means less time for you to have to avoid stuff being shot at you. And of course... you have to practice. Sorry buddy, there is no way around going past those tens of hours of memorizing bullet patterns and getting used to your little loli battleship controls around thick danmaku layers. Best of luck to you!