Hi,
Thank you for the quick answer ! I'll respond to your interrogation, and i think i need to explain my experience with touhou in order to do that.
First, i think i need to say that, although i'm not a "hardcore" gamer, i still enjoy most of my game when they are hard. Examples from my favorite games include celeste, hollow knight and geometry dash (in which i spent several hundreds of hours, but i was a long time ago when i was still at school and had much more free time...). It was actually this point that brought me into touhou (plus the fact that i just started getting interested in japanese culture and anime), and it's also the fact why i started with SA. I learned about touhou, jumped in a discord server in which i asked for the best touhou game irrespective of difficulty.
You are right about the continue system, i liked it because it felt really satisfying clearing a stage for the first time. When i started SA, i wasn't able to clear stage 2. The first time i did, i went to stage 3 and it really felt like i would never be able to finish it, had to put several hours before doing so. This feeling was intensified for every stage, at a point where each new spell card felt like a big accomplishement before dying immediatly, being frustrated and thinking again that i will never be able to finish it. I spent about 30 hours to complete the normal 1cc run, but when i did, i really felt satisfying (probably not my hardest gaming achievement, but probably the one that felt the most satisfying).
Then, i moved to PCB. I launched the game, started the first run and 30-40 minutes after, finished the game (with continues). And that was it. No more new stage, no more new spell, no more challenge. Of course, PCB is way easier than SA, and i already acquiered some experience doing the SA 1cc run, and it was going to be easier. But it really felt empty. I then started training a bit, and cleared the first normal 1cc run after 4-5 hours, about the same time that i spent clearing the stage 3 for the first time in SA. Dont get me wrong, PCB is really a great touhou game and the final stage is awesome, but the experience i had with it was way less intense than SA.
After that, i tried playing a bit of IN ans WBAWC, but i couldn't get into them and i droped touhou for a couple of years. I got interested again after meeting someone who played touhou IRL, and that's when i played EOSD. I guess it was alright, but again felt really easy. Again, droped touhou for a couple of years, and i just started UFO, were i am now. As i said earlier, i kinda experience UFO the same way i did with SA. Maybe it's the fact that i didn't played touhou for quite some time, but it seems challenging (right now, i spent about 8-9 hours and got to stage 6 twice, i'll probably clear it within 10-15 hours playtime).
So yeah, that's my experience with touhou, and why i love the touhou 10-12 continue system. I now that you are gonna tell me to try hard mode or maybe lunatic, or even try extra stage (which i somehow never did). Maybe i will, maybe not, i unfortunately don't have much free time now... Right now, i think i'm gonna 1cc UFO and try MOF. If it feal too easy, maybe i'll drop it and try again in a couple of years?...
Anyway, thank again for the response! At least i tried x)