I seriously need help. I would thank specially from people who had this annoying problem.There's this passage in Prokofiev's 7th sonata, first movement. It's a fast run upwards in the right hand. I cannot get it right. At first I learnt it without much struggle, besides acknowledging it was a hard section. But since I screwed up in a lesson performance in front of the teacher and felt embarrassment (I'm talking about full wrong notes and being paralysed), I always get blocked in performances. I've tried it all: slow practice, joining with sections beforehand, hands separated, giving it a one month break... And it works at home!!!! I've got the technique!!! But in "performance mode", I'm always thinking "here it comes, here it comes..." And then I screw it up. It's not a wrong note, but a full inability to perform the run. I feel a physical block and I end up slamming the keyboard, continuing to the next section.It's very frustrating. I don't think I can perform this piece in competitions again. I don't know what to do. Thanks for reading!