Oh Brain, you stinker!

I don't really know what to write about today. If I think about what I did, or what I was thinking about, I suppose I could write about my sister.
As previously written about, I am in my late twenties, while my sister is a pre-adolescent. Last night she stayed here at the apartment, so this morning I had to wake up and get her ready for her early martial arts class. I don't know if you've ever tried to get a pre-adolescent ready for something in 30 minutes, but it is one of the most frustrating things in the world. What doesn't help is that, like myself at her age, she moves at the speed of a three-legged turtle. This amounts to an early morning test of patience for yours truly.
So, at this time, what would be something that would make the situation worse? Oh, I know! Two other siblings who butt in and try to help with the situation by giving the small one multiple directions while I am trying to keep her on track. Then they actually snap at her, and at me, when she gets frustrated and I try to correct her behavior. Never mind the fact that I have worked with children for years; I am told that I need to stop telling the older sisters how to handle the younger sister.
There is nothing that angers me faster than someone not listening to what I say when I know more about how to handle a situation better than they do. Nothing will make me yell, fight, or devalue some one's efforts or opinions quicker than someone not objectively listening to the knowledge I am trying to impart. I have little patience for stubborn refusal, and absolutely no respect for stubborn idiocy. This may sound harsh, but it is the way I think. I mean, if I am making a table and a carpenter comes up saying, "Ma'am, I have been a carpenter for three years, and I'm afraid your measurements are wrong and your table will be crooked," I would listen to them; I would double check my measurements. Why would I do this? Because that person would have more knowledge and experience of the task at hand. I don't think this is a difficult concept to grasp.
After this, I spent most of my day trying to figure out if my annoyance was due to logic, or my own emotions and habits of trying to save people and situations. I didn't get my answer, although I was leaning toward logic, but the very question gave me pause. Since my therapist told me that I need to spend at least 30% of my energy on myself (out of 100%), I've felt conflicted. I've thought over all the reasons why this is a silly notion and even wondered if my pro-bono therapist doesn't understand the concept of living a life of helping others. At that point, I got annoyed at myself.
I have to take my own advice. I need to stop annoying myself. Don't get me wrong; I am not telling myself I am an idiot, belittling myself for not realising this sooner, or thinking of punishing myself for thinking wrong. No, I merely see that it's not such a bad thing that I know all the things that I know. Had I not had all my experience trying to help other people, of working in a behavioral health setting, it might be taking me a lot longer to realise the things I need to do. I can be thankful for that, instead of seeing it as another failing on my part for not following what I've known for years.