How old were you four years ago? Decribe somethings you can do now that you could not do then

I was 11 four years ago and could not ride my bike that good when I was 11,I keep
fall of most of the time I try to ride it. Also i could not know how to pop a willie on the
bike evey time I tryed i fell and hit my face on the handle bars, that hurted really bad. But now
I can pop a willie without hiting my face on the handle bars at all and ride my bike very good without
falling off evey.