I will say though, I've found putting pencil/pen to paper and brain dumping to be rather therapeutic at times! In your secret notebook you can even trash that teacher that tried to dissuade you from writing. :D
(Got this idea from The Artist's Way book. Lol)
Lol I hated this too, I really did. But like a lot of answers here, I can appreciate it somewhat now. Especially when trying to learn to code.
I think learning to break down problems might even be MORE valuable to people like us with ADHD, even if we hate it, because we tend to intuit our way through things by the seat of our pants.
Also sometimes I got really lucky and arrived at the correct answer in a bizarre and inconsistent way.
In the end, it's very valuable to be able to communicate your process to others. Even if it's irritating and awful to get through.
I also wonder if those like myself, who really REALLY hated math until my brain started to appreciate it in my adult years, just gnash our teeth at these memories because it made us feel stupid when we struggled to keep up with that slow, methodical raw-logic stuff...
EDIT: I can see you were the polar opposite of myself, ridiculously GOOD at math but found it a waste of time showing how you got there. That makes sense. I have zero idea what that's like lol.