Hey Gregor, cool for writing yourself.
I've been there and done that thinking that some points are just not 'important' enough to share, but I redefined the point of 'sharing' not as in writing it 'for others' but being my own starting point of supporting me, to understand and open up even those things that I deemed before as 'menial' or 'unimportant' and this way, I've found it IS possible to find one point, one word, one experience, one memory, one situation or observation about oneself every day.
So, here I'd definitely say to you: go for it, don't fear to be judged because there is no other way to really develop self-honesty with Yourself other than writing and applying these tools, don't fear to 'make mistakes' because they are not 'wrong ways' but simply paths that we can test out and see what the outcomes are in applying them.
To me, letting go of this idea of 'not important enough, not relevant enough, too menial of a subject' is still something that I have to push through because of having placed certain 'standards' on my writings and yes! I realized I did this to myself and only now been testing how to let go of my own judgments and standards and instead pick one point a day for self-support, and see what comes up - this is also what it means to unconditionally write yourself, for yourself and 'sharing' it then becomes simply an extension of knowing that this writing is something that supports you, that assists you first and foremost - so the sharing is not 'for others' only, it is an outflow of giving that support for yourself first of all.
Last point, there are really no 'standards' here, we are the ones that decide to create them in our minds so one might as well also decide to let go of standards, morality as in 'right or wrong' and so any form of judgment. If a judgment emerges from you towards your writing, that's the moment to breathe, self forgive the judgment out loud and stick to the commitment to write yourself out.
Try it out and see how it goes