Should I write my college essay on OCD?

Are you just your OCD, or is there more to you?

My advice on this will never change: there’s almost always something better to write about. Not all colleges will automatically reject you for writing about this, but…why? Sorry, but I just don’t think it’s interesting. And hardly any students have enough skill to write about such topics in a way that makes for good reading while also managing to reveal something positive about the student.

As @MWolf said, these types of essays are so common. To you, it was your life, but that doesn’t mean others want to read about it. I’m not trying to be harsh, just realistic.