This is gonna sound super pretentious, but I genuinely don't remember a time in which I wasn't into creative writing, haha! I still have little scribbled pages from toddler-me's stories. Writing is just something I can't stop doing, and my brain will leak out of my ears if I don't get the ideas out of my head and onto (metaphorical) paper somehow

I have no formal training, but I've watched a lot of writing-related YouTube videos and read books on writing. For you, I recommend just opening a blank doc (digital or just normal paper) without thinking about all that. I think consuming a lot of writing instructional resources up front is pretty paralyzing and demotivating, because it's easy to overthink. A trap a lot of writers (including me! Been there, done that) fall into is thinking about writing instead of actually writing.

If you have any ideas at all you wanna explore, just don't overthink it and get some words out (without worrying about stuff like prose or characterization or anything else). When I was younger, I'd browse https://www.tumblr.com/writing-prompt-s a lot as they have really interesting ideas.

Hope this is helpful! Let me know if you have any other questions; I could write about writing all day.

This is great thanks!