while watching cartoons as a kid, I quite clearly remember favoring the ones where the animation looked more complex and less simplistic, yet just imperfect enough... where characters were seen from tons of angles and moved around so much, with variety and ambition, exaggerated and fantastic!
for example, I was obsessed with anything to do with Avatar: The Last Airbender despite having barely caught it on TV, I fell in love with Sonic X and binged it online, and I happily caught the occasional episode of Sailor Moon and Futari wa Pretty Cure -- while I always sat through, say, The Fairly Oddparents a bit annoyed. Disney movies didn't really do it for me either?
when I started making OCs and realized I too wanted to make my stuff look cool that way, that was it lmao.
I settled into that mindset very slowly throughout teenagehood and my mental state at the time made it hard to be remotely consistent, but when I managed to finish some things I just felt so much satisfaction from it and always wanted to make more :D
of course, improving my technique, being in a better place than I used to be and having access to more content from the internet to be motivated by (more anime to watch, finding amazing indie animators online, following anisong/vocaloid-adjacent projects, all sorts) did wonders.
I've also improved my sense of storytelling and expanded my cultural baggage/sources of knwoledge/ways of thinking in a way that made me want to tell more interesting nuanced stories... I guess all of that grew at the same time. now I also have the aspiration of wanting to deliver the worlds and ideas in my head aesthetically, with intent and nuance, with the right mediums.
the process can be so tiring (esp the refining process. I'm at that stage for a project atm and I wanna unalive lmaoo), but the result just makes it all so worth it. :,)