Congratulations!
And definitely a time for celebration.
That self-confidence and the conviction that I have nothing to lose and more to gain (experience) whatever comes my way is the actual recipe to success and such a mentality very often outsmarts the opponent, no matter what momentum the opponent carry from their formidable past.
I can understand your emotions, with a growing kid into adolescent a Father always lives through such accomplishments of kids, it's more than a trophy for a father.
Thank you.