This is not the Final product

As you go forth in your practicing or writing, understand that what you currently working on is NOT the Final Product.
What you are doing is the ROUGH DRAFT.

With this said, go ahead and give yourself permission to change ideas, to fix and edit it at some point in the future.  Don’t be so hard on yourself, it is a process with many steps.

A few months ago I did some reading/research on how writer’s prepare to write a novel, poem, or anything really.
I did this because I wanted new insight into how to work on my own music.

A writer never goes into it thinking that they are stuck with the first thing they plop on the page.  They aren’t chained to it, it can change and develop over time.  They can come back to it at a later date and improve it.

Most writers create some sort of flowchart/outline displaying where it is they want to go.
An outline is a great tool for the practicing musician. Make an outline of what you want to accomplish in practice or perhaps what you would like to communicate with each piece of music. I think for the intermediate+ student it might be a good idea to consider what it is they are trying to say with their music or on a particular piece of music.  If someone is trying to write a novel, they will jot down potential characters, plots, storylines, scene changes, etc.  Try to do this with your music, make a rough list of what it is you wish to work on and possible directions it can flow. 

Many students of music approach their practicing as if it will yield a final product, and then get incredibly discouraged by the sound or results.
The first thing you try to do isn’t going to be the equivalent of a Charles Dickens novel. You start with sentences then paragraphs and then a short story and so on. For you this may mean, you start with one scale at a time, one chord, one new right-hand technique.

Never lose sight of the process. A process that has STAGES. Where each stage has a different “result” if you will.

If you ask me the reason people don’t get where they want is they simply leave out steps in the process or expect a result from a stage that isn’t designed to yield that polished of a result.

On the other, unfortunately some people plop a rough draft down on a page and call that the final product, say it’s good enough and never edit anything they produce.
It is the EDITING stage that is critical to move to another level of musicianship. Without the editing there isn’t improvement.
Without letting someone else read over your work, it doesn’t improve because you can’t possibly see all the mistakes you’ve made.
These seem like simple ideas but really think about them and it might take some of the load off yourself.  MORE LATER.