Understanding your brain and motivation is the first step to being able to get things done. The ADHD brain is motivated by interest and urgency, not importance. That makes it harder to get going on things you don’t want to do, even when you know they are important.
There are some helpful procrastination strategies in this article:
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism