Just graduated high school yesterday! Having undiagnosed ADHD until my senior year, I did terrible in school.  I failed almost every class because I often forgot to do homework even though I'd pass the tests with flying colors.  During my senior year I was put into independent study and pretty much took around 2 years of failed classes into one whole year.  It was stressful, I still did everything last minute, but with the help of being diagnosed with ADHD and taking medication for it I graduated high school!  Now I'm going to the local junior college and hoping to transfer to a UC in 2 years.  Good thing is now I have the proper resources to get stuff done :)