You Mean I'm Not Lazy, Stupid or Crazy?!: The Classic Self-Help Book for Adults with Attention Deficit Disorder (4.5 star, 500+ ratings)
How I Manage My ADHD Without Medication (Dan Martell, 120K+ views)
ADHD in Adulthood: The Signs You Need to Know (400K+ views)
There is also a subreddit you can join, where you can find people with the same issues and that can answer specific questions you have: /r/ADHD