This might not be a relevant post. However, I feel it's worth sharing.
I have recently come to acceptance that, not only do I have to live with my mental health issues, and (the lack of) fertility, but my dyslexia too. I feel this is something that should become known (acceptance of).
I have learnt over the years, to pick and choose my fights. So if my voices (I am schizophrenic) wear me down (as they are nowadays) I should do the things to dig myself out of that hole. Talking with friends, eating properly, showering etc.
If I could have the tenacity to suggest, that if the circumstances with SEN are wearing you down, to take a step back for a day (you could take a long weekend away) Away being away from the topic at hand.
You don't need to travel or go / do anything out of the norm, but just to remove you from the situation (if your able to), to get the head space to then tackle the problem again with fresh eyes.
We are all human, and have limitations. Don't for a moment think you have to compromise on you / your family life.
There's a great quote from the creator of the TV show "Qi". "Looking back, it was a nightmare, we had failed". But what seemed like a failure, has turned out to be OK." (Not the exact quote, but something on the lines of it).
This isn't about "thinking positively", but more, knowing how and when to direct your energy and effort, to better your or your child's development and progress.