Maybe create a “beat the clock” sort of scenario for yourself? That might create the stimulus you need to focus better. It needs to be more about short bursts of work, so you’re still being mindful of your work and not going so fast that you make mistakes.
I like the idea of headphones too. Large, open rooms are hard for most people to work in, not just those with ADHD. And I love Ingrid’s suggestion of asking for a cubicle in the quietest location possible.
Here are some more tips and strategies for getting things done at work:
ADDitude Community Moderator, Author & Mentor on Parenting ADHD, Mom to teen w/ ADHD, LDs, and autism