First of all, let's imagine that your dream in organ playing is being able to play the great works of Bach. This is a great dream, of course, which requires a great plan and wise practice. Obviously, this dream is a long-term one because it will take at least several years of concentrated effort from your part. So it is only natural that sometimes you might get frustrated and feel a rising impatience which slows down your progress.
If your lack of patience is holding you back from realizing your dream, then of course you have to persevere. I'm not immune from this problem either. However, it helps if I remember my goal which might be very specific, like master a specific piece, prepare for a recital etc.
So I guess if you experience lack of patience, remember your grand dream of being able to play on a good level big Bach's organ works. Or even better, subdivide your big dream into several others of a smaller scale, like learning a particular piece in a particular number of days. This will be your short-term goal or dream. Then think of what steps you should take in order to realize your dream.
For example, your dream might be to master Bach's Prelude and Fugue in C-major, BWV 553 in 2 weeks. This fantastic composition, the first from 8 Little Preludes and Fugues has 3 pages of 4 lines each which makes 12 lines total. In order to learn this piece in 2 weeks, you will have to learn 1 line a day and repeat the previously learn lines every day. So in about 12 days you will have learned this prelude and fugue.
This will be your plan. However, you are probably aware that the fugue is usually more difficult than the prelude to learn because of its polyphonic imitative writing style. It may well happen that you run into several problematic place while learning the fugue (especially when there are pedal entrances). And all of a sudden you want to quit practicing this piece and take another composition which is easier to learn. That's a very realistic situation for many organists.
So if you ever face a problem of losing patience and running away from the organ bench, think of your plan. Then no matter how impatient you might be or how boring it may be to practice this piece, all you have to do is to stick to your plan and continue practicing the right way which will lead you to success.
You just have to remember that sticking to your plan is like going from place A to place B on a train. Your plan is like train tracks and if you just follow these tracks, you will inevitably reach your destination.
On the contrary, if you give up practicing for some reason, lose patience or switch to an easier piece without properly mastering the current one, then you are sacrificing your progress. This is a very good thing to remember because your time is very limited and precious.
By the way, do you want to learn to play the King of Instruments - the pipe organ? If so, download my FREE video guide: "How to Master Any Organ Composition" in which I will show you my EXACT steps, techniques, and methods that I use to practice, learn and master any piece of organ music.