>>1745464>21 misses>9 bombsBomb more. It's the #1 cause of early game overs with new players.
If you don't know about streaming & bullet herding, do a quick google. Controlling the amount of space you have is essential in shmups (although less so with Touhou due to the style of patterns).
Hard mode 1cc is possible for someone new to the genre, but expect to get walled by stages 4 & 5 for a while.