But what to do if the episode you are working on is extremely difficult and you make too many mistakes, despite the fact that you hear the perfect performance in your head? Is it possible to keep you patience and faithfully practice as if nothing is bothering you? Is it possible to really let go that tension and stress rising inside of you and just to enjoy your practice?
I think what you can do if you are feeling impatient is to focus on the basics. Here I mean correct notes, rhythms, fingering, pedaling, ornaments, articulation, tempo, and hand and feet position.
Check if any of these elements need correction and simply repeat the excerpt 5-10 times with the aim to improve them. These repetitions could be your immediate goal.
Having a clear goal in mind while practicing really does help to calm down and relax. Don't forget the power of slow and deep breathing through the nose which improves the focus of your mind. This in turn will help you to avoid mistakes, and consequently, unnecessary frustration.
You have to understand where your frustration and impatience are comming from. A lot of times they come from unrealistic expectations of wanting to play perfectly the entire piece too soon. What you can do if you run in such problems is to focus on playing separate voices or parts for a while.
This again will help you to calm down and be happy with your organ practice because the texture will be easy enough to manage and you will begin to see the results you like right away. When this becomes easy, slowly add one more voice. By doing so, little by little you can master even pieces which currently might seem out of reach for you.
By the way, do you want to learn my special powerful techniques which help me to master any piece of organ music up to 10 times faster? If so, download my video Organ Practice Guide.