Counting Obsession

As i've mentioned quite a bit, I want to do a piece/project on something personal and meaningful. Ive had this obsession or ocd or whatever for as along as i can remember with counting things. It's something i don't even realise i'm doing, and when i do realise i can't just stop, my mind is never rested. The thing about the way in which i count is that it's of completley random things- the outlines of things.
So like for example, say a chest of drawers has 3 drawers, I'd count the outside of each drawer which is 4. So in total the drawers would make it 12 (3x4). Then i'd add each drawer to make 15. This is what's the most annoying thing about this obsession, is that i can't stop at 15, it has to be an even number ending in 0, so 10, 20, 30 etc for example. I can't just leave it at 15, or something like 23.. it makes me feel like i haven't finished something, a bit uneasy. So because of this, i'd find something else on the chest of drawers so make the numbers up. Each remaining side of the chest of drawers; top, bottom, back, left and right make it to 20.
And then i start counting the same thing all over again.
I do it mostly when sitting still like in the car for example, or watching t.v and if something comes up on a programme/ film, in a lecture, on the bus, i do it walking to places.. basically all the time, it never stops.

As crazy as it sounds, i even have favourite things to count, or things i prefer to count should i say..
>windows when im in the car
>a face- 2 eyes, 2 eyebrows, 2 nostrils, 2 lips, 2ears = 10
>any general geometric shape.. i don't like counting things with rounded edges (i think its not fair.. don't ask.)