How did I become an otaku?
Curiosity.
Before I became a real otaku, I used to watch Bakugan Battle Brawlers and Tokyo Mew Mew a lot.
Then, I joined the manga club at the school I'm currently at (it only lasted for one year) when I started, and I read the Tokyo Mew Mew manga. Then there was a year where I didn't read any manga or watch anime. Through all of that time, I was drawing in the anime/manga art style.
Then, last March, I was listening to Nightcore and was curious. I searched up "vocaloid ievan polka" and from there, I found Vocaloid.
My first proper anime I watched online was Black Rock Shooter because I liked the song, and then here I am now!
Ever since, I've been watching anime, drawing in the style, listening to J-pop and liking manga, and I hope to buy my first Nendoroid figurine soon. ^_^