I have been racking my brain on this one! To only choose one moment may be difficult but there is what I have concluded:

Seeing London through the plane window for the first time.

Ever since I was a little girl I dreamt of seeing Europe. I had saved up money for years with the intention of going. When I finally did it, it felt amazing. That was the first big thing I did 100% on my own, for myself. I feel that there are many more moments to come in life that will top this, but for right now this takes the cake 🙂