Google "adhd hobby jumping". Too much to explain here. The main thing to keep in mind with ADHD is that when a normal person simply thinks about doing a task, they get a hit of dopamine that gives them the motivation to do the task. An ADHD person doesn't get that until after the task is done, which leads to them never starting. The exception is with things that are an instant dopamine hit. The new shiny. Lather, Rinse, Repeat.
What I've found helps me with hobby jumping or not completing tasks/practicing/etc. is to not talk about it. If I'm going to do a task or work on a hobby the act of saying I'm going to do something triggers the same dopamine reward as actually doing the thing. Instead I try to only talk about things that are already done in order to hold myself a little bit more accountable for actually working on stuff.
I know I'm answering late, but WOW I didn't know this was an ADHD thing. I have noticed that if I talk about doing a thing, I don't do the thing, and the opposite is true. I thought this was just a ME thing. Mind blown. Thank you for sharing this!
