It's important to celebrate milestones and achievements made throughout your life-big ones, little ones, and all in between, as they are all important, and each one contributes to the legacy you will someday leave behind.
Along with your successes, you will inevitably stumble along your journey too. There will be set backs, and times you just don't know if you can go on. You can. You will see that sometimes the mountains before you are actually just little rocks-rocks you can easily flip over and claim your reward- you just have to look hard enough to see that sometimes things are not as they appear to be.
Stand tall as a tree, keep your chin up, your feet grounded and your eyes open and scouring for opportunity. Don't be afraid to say "hi" to a stranger- Peter might like that.