What is the earliest memory of your OCD?

I think mine is probably back 7 years ago, I was 10 years old and started watching the clock while reading before bed. I had to read until half nine on the dot. No matter how tired I was because something ‘bad’ would happen if I didn’t.

This quickly turned into me having to listen to my sister breath until the count of 500 so I know she wouldn’t die that night, tying my wardrobe doors together so monsters couldn’t get out and then compulsively checking the doors and windows. Moving shoes out of the way so no one would fall and puncture their eye with an umbrella etc. by the time I was 11 my OCD was in full swing.