You won’t know unless you are evaluated. It does sound like you may have at least some symptoms of ADHD.
Those with ADHD can focus and concentrate, when they’re interested or feel urgency, but not when something is important. If you do have ADHD, that explains how you’ve been able to focus on some things and not others.
ADDitude Community Moderator, Author & Mentor on Parenting ADHD, Mom to teen w/ ADHD, LDs, and autism