I gave up on job search

Can't stop thinking about my ADHD, and it’s really messing with my productivity. I need to find an internship, and I’ve got less than a month left. I screwed up the last few interviews without realizing I had ADHD—was pretty depressed at the time too. Now that I know, I'm trying to work through it, but it's still hard to stay focused. Does anyone else have this experience? When you realized you had ADHD, did it change the way you approached things? Any advice?