That's the best way I can explain it.
Oh yeah, being interested in one thing one day and completely hating it the next day makes it hard to really plan for any long term goals when you're not sure what you'll even want to do tomorrow, in a few hours, next week, next month.
It's like your head is disconnected from your body and you're watching a bored teenager live your life for you. Watching him annoy the people you enjoy being around because you can't seem to get him to do anything that causes the slightest amount of stress. If you're too stressed thats when angsty teenager drowning in his own emotions comes in and flails at everyone around him and you can't even get yourself to say what you want to say because everything that comes out of your mouth sounds like you're blaming someone else for something when you're just trying to be like hey, I need you to calm me down I'm not trying to make you feel bad.
I feel worse for the people around me sometimes than I do for myself because I still have a hard time admitting I have ADHD and not that I'm just lazy and don't want to do anything. That's the true nightmare.