Same!! I remember stuttering once at a young age, and that experience was the first time I've ever had a true "block." But once I started middle school, I noticed it way more, and by the time I reached high school, it got out of hand. I've been doing speech therapy .. they told me that it's very rare.. most people experience disfluencies at a young age. Still, environmental factors can also worsen a stutter.. it could be anxiety around your peers that causes you to stutter more..