I'm the sort of person with a very short attention span, and I lose interest in things very quickly.
I just get bored easily. As I'm sure other people do too.
I'm an impatient person.
I'm kind of an antsy person.
I get bored very easily.
When I get bored with something, I'm done with it.
I get bored quickly. Always have. Short attention span.
I've been described as impatient.
