Have you ever been called out for Daydreaming in class? I bet it didn't feel great. Daydreaming can make it seem like you are spaced out, disengaged and not paying attention. Adults may think you are procrastinating, disorganized and that you lack self-regulation. If you're simply taking a nap in class, maybe you deserved the reprimand. But, there should be no shame in making time for daydreaming - if you do it at the right time.
Daydreaming, or otherwise spending time in reflection or creativity (doodling, drawing, thinking), can lead to innovation. It can lead to art innovation, music innovation, science innovation, business innovation and more. It's actually important to set time aside to daydream and be creative. It's okay to immerse yourself in it.
Planning and timing your daydreaming is important. You can't do it in class just like you can't do it in the middle of a client meeting. But, you can schedule it! Feel free to block time on the calendar - and then follow through and do it!
An ADHD mind can spiral around a fixed set of options - you have option A or option B - what do you chose? (The choice could be impossible to make.) "Daydreaming" and creative problem-solving can introduce new ideas - more options to consider. It's a trial and error process. You shouldn't expect to sit down and have genius innovation every time. But,, sometimes you will happen upon those important "Aha!" moments.
Like many other Executive Functioning skills (scheduling, time management, planning, etc), creativity often is spurred by talking it through with other people! Get those thoughts out of your working memory and into the air. Having a "creativity partner" helps!
For more on this topic, check out this podcast with Jeff Copper and Christine Robinson.