You might outgrow it, you might not. Your stutter doesn’t define you and I would recommend therapy if it is available in your area. Small people may occasionally mock you or try to bring you down but ignore them. The are a tonne of people who stutter that have done amazing things. I am 38 and I learned a while ago it is never the stutter holding me back, it’s just myself. Since learning that, stuttering is just something that happens while I get on with my life. I think this mindset is required to stop stuttering.