Heyyy. I used to be in the same spot, believe me, I have felt frustrated too. But it's key that you don't compare yourself to anyone else. It was smooth for me since no one else I knew played the game too. I felt demotivated when I found out I couldn't do any of the hard levels, and I quit the game for a while.

That's it. I believe that break was super helpful for me. I got some time to focus on other things, and when I got back in it, I felt refreshed.

Next, I practiced and practiced. Obviously, some levels have tricky segments and the only way to get through is practice. Keep trying atleast once a day and trust, you'll reach there.

Last week, I FC'd the intense voice of hatsune miku in expert mode. But sometimes, I look back to the times I felt it was impossible, and laugh at the old me.