Now my worst fear is that I figured out how to implement my idea, because now the only thing stopping me is my laziness.

Or the lack of strong motivation or purpose

@asgs nope it’s my laziness and I know it

I've been there. I once solved an issue in one of my side projects after not thinking about it for 5 months. It just suddenly came to me and it was simple. I just didn't have any motivation to do it anymore as I didn't have a need for it after so long.