I have just learned from observation, speaking with counselors, and watching videos online. I have a family member with severe ADHD.
You might want to visit with a doctor to be evaluated for ADHD. There are medications that help, but they differ by person and medication with side effects.
Also, check out this channel, "How to ADHD." Here is her playlist on 'What is ADHD?' https://www.youtube.com/watch?v=xMWtGozn5jU&list=PLvq9Tp5JZ8...
This is my biggest hindrance, illustrated: https://adhd-alien.tumblr.com/post/186747323969/my-totally-u...