Like, if you're already a visual artist/writer you can't pick anything else in those fields.
I would say composer, but I've already made a lot of music...I guess I'd pick dancer/choreographer.
I used to be kind of interested in dancing when I was a kid (I'd copy the dances from Pretty Cure and Vocaloid videos) and I will always love choreography. Part of the reason I keep coming back to animation even though I hate it is because I have so much fun designing movement; I can't just only do it in my head.
Actor would be next on the list...but my memory ain't what it used to be; I think the best I could be is a voice actor. Although even that sounds hella fun, to be honest; it's something I've always wanted to try someday.