I'm a relatively new player (just a few months, never really posted here before except one thread in the tech support section) and I mostly rage because of how incredibly inconsistent I am. My first Touhou game was Embodiment of Scarlet Devil, which took me three months to finally 1cc on Normal. I did the same with Imperishable Night a while later and had a much easier time. Perfect Cherry Blossom, which I heard is one of the easier games in the series along with IN, is a whole another story. Just yesterday, after quite a few unsuccesful attempts, I finally decided to 1cc it on Easy so I could take a look at the extra stage... and failed. The second time was succesul, though still with way too many deaths. And then, on my second try at the extra stage, with no foreknowledge whatsoever, I made it about halfway into the fight with Ran. So either this part of the stage is exceptionally easy, or this makes no sense.
Something similar happened today, only in reverse. Mountain of Faith appears to be a rather easy game on Normal difficulty. Today was only my third or fourth try, I made it to Kanako with one life in reserve and predictably lost on Misayama Hunting Shrine Ritual, but I decided to take the opportunity and restart the stage a few times to practice the fight against Kanako. Bad idea. I kept losing and losing before even reaching the aforementioned spell card, getting more and more annoyed all the time. Argh! I don't know, maybe I'm just trying to do too many things at once recently.