Oh my gosh thankyou! I never really knew what to call what I have but cluttering sums it up pretty well actually. I don't "stutter" per say, but I definitely trip on words sometimes, and use a lot of insertions like "ums and uhs" before saying a word or scentence which makes me sound lazy when I speak. I'm only 14 so I always thought it was down to having social anxiety as a cause for this but I definitely relate to what you're saying