I liked drawing and I liked telling stories as a kid, and originally I assumed I would write stories and illustrate them. When my mom went through some writing exercises with preteen me to help me grow those skills, it quickly became apparent that I had little patience for descriptive text ("I wish I could just draw it") but I loved dialogue.
My mom told me, "You know, in Japan, they have comics that don't have to be funny -- they're just stories. Maybe you could make comics like that!" and that was a revelation to me!!
So in highschool, I started trying to get into comic books (both western and manga) and started seeking out books on drawing comics. I never really did manage to get into any comic series (I wouldn't discover webcomics until later), but I drew a bunch of comic strips for fun and got very attached to the idea of making my story ideas into comics, instead.
The first Actual Comic Page that I was proud of didn't happen until my senior year of highschool, and I wouldn't actually start publishing ongoing comics online until after college, so I guess the moral of the story is that it's okay if it takes you several years to make this stuff happen. xD