That said, I have a problem that drew me to this possible solution.
I have a GoPro camera.
When I shoot "film" by hand, it is unstable.
At first, I thought I needed a slide.
But when I created a slide, I realized I needed a motorized slide.
Then I realized I needed a precise motorized slide...and one that could move all about (up and down, back and forth, side-to-side) with precision.
And then I discovered Arduino.
I have yet to create the product I need, but I have already envisioned it (i.e. created it in my mind...and am continuing to do so).
Therefore you have a need.
Evidently you have the skills and tools to create the solution. The need gives you the path, and most importantly, tells what you need to learn/solve/change/implement/troubleshoot/refine....