Although thinking about it, the actions I remember taking as a ten-year-old seem pretty consistent with you I am today, but I would guess that I am an outlier in this regard.
You aren't. Most people overestimate the amount that people's personalities are likely to or able to change.
Any chance we could get anecdotal evidence about this? Or better yet studies about it?
How much have you changed since you were 10?
ETA: I google'd it and came up with this but neither I nor my university seems to have a subscription to peek inside.
Update: This post has also been superseded - new comments belong in the latest thread.
The second thread has now also exceeded 500 comments, so after 42 chapters of MoR it's time for a new thread.
From the first thread: