As a person with ADHD, I feel personally attacked.
I find that I don't have major issues doing a thing once I get started on it. The main problem is choosing from among many things that I could reasonably consider "the thing", and then feeling confident enough in that choice to start.
There are times where you obviously need to do the thing to understand the thing to see the process of doing the thing. This allows for breaking the process down into better steps. Just writing code to do things you think is doing thing but prove not to do the thing when actually doing the thing is common.