Except instead of being cursed with a compulsion to count every grain of rice in a pile, I'm cursed with the compulsion to start and finish everything that catches my attention.
I'm using the ADHD definition of 'finish' where I'm finished enough to move on to start the next thing.
It's more akin to adding another spinning plate to my routine when I find enough time to catch my breath.
I didn't know vampires had OCD or however is called the counting stuff thing
Oh yeah. Old myths said to carry grains with you and if you scatter them before you start running, you'll get a decent head start.
It's an uncommon trait in fiction that I love every time it shows up
No idea, only recently heard the "can't enter unless invited". My folklore doesn't include vampires