This is also a result of different dopamine and other neurotransmitter function in folks with ADHD, not just anxious overthinking. With a deadline 6 months away

This is also a result of different dopamine and other neurotransmitter function in folks with ADHD, not just anxious overthinking. With a deadline 6 months away, the dopamine reward to work on it doesn't work like in normal people. While, say doing something in a video game that triggers dopamine release reward which motivates action.