I think it's true, that you can overcome OCD, and in *some* cases, grow out of it. I've been OCD for as long as I can remember. When I was a kid, I did the humming, picking, touching walls, holding breath, obsessing, germs, blinking and all those common ones. When I got a little older, my issues kind of reverted to depression, but I also had paranoid obsessive thoughts. For example, I thought my mom was reading my journal while I was at school, and the thought made me so sick I had to call her to come pick me up. I also had religious OCD, and was delusional. I thought I was going to hell. Then I got on antidepressants and most of my problems went away. Now that I'm past all of that, I've gone off the antidepressants, and I'm *pretty much* normal (still have a little OCD, but it's not life-altering).
I think I was helped by a few things: the antidepressants, understanding how the brain works, keeping a tight rein on your actions and thoughts and realizing that these issues don't go away without any effort on your part, and just growing up. I think having a healthy, low-stress lifestyle with a good support system is about the most important thing you can try to do.
Oh! The lists! I do that too. I make a grocery list for just a few items as well. I make several lists every day--what to do the next day, all the outfits I will wear for the next week...a few times I've even made lists of what I needed to make lists of..I swear I'm not kidding. But, I am also really scatterbrained so I almost HAVE to do that. I think I have ADD, but then again, it could be my OCD mental-hypochondria. Argh. It never ends!