I have ADHD and in software engineering. I was also diagnosed recently… around a year ago. Disclaimer: I have around 20 years of experience.

Since I take my medicine I notice that I am way more precise than before and that I am not rushing things anymore. It’s absolutely insane how many sloppy mistakes I made before and how much my code quality improved overall. I am now deeply ashamed how much of a pain in the ass for my colleagues I must have been before :p

Anyway: What makes the difference for me: taking the time to think about proper solutions. Let some problems rest for a day and reevaluate the things I made the day before, before review, merge or deployments.

Back to your original problem: legacy code like that is probably hard for everyone but it makes a difference in what pace (or patience!) you are doing your work. I think medication can help you with that :)

Wederom gênante vertoning van dit zure spruitjes kabinet.