I’m also the same age. Out of my siblings, I’m the only one who has a stuttering issue/speech impediment. For me, I do have a mild/serve stutter, sometimes my sibling wouldn’t even know what I’m trying to say which gets me annoyed at times. I’m currently in speech therapy at school, but it barely been any help. Even when I was getting out of school speech therapy, it also been little to no help. At my age, both of my siblings were able to accomplish a bunch in life and they’re currently striving in life. While I’m just here just living life with a stutter. Doesn’t help with the fact that my parents have somewhat high expectations of me just because my siblings were able to do things at my age. I do feel limited at what I could do in life just because of how bad my stuttering is. But it’s whatever at this point for me 🤷.