Adult ADD/ADHD

Does anyone have any experience with being diagnosed with ADD/ADHD as an adult?

I thought I was having trouble focusing on things (at work and at home) because I was depressed. I've been in therapy for several weeks and I'm feeling a lot better, but I still can't seem to get my life together. I have some symptoms of ADD and looking back at my childhood I have always had some of them but I was always high achieving so I guess it didn't matter. I don't know what to do.