When people are young, they just want to get older.
Once people start getting older and discover what it is like, they miss how things were when they were younger.
It sounds like you're discovering the ebbs and flows of life, and why it is important to focus on the things that make us happy.
You've got tons of potential and a lot of people here adore you, so don't forget to include that in your reflections.
Can't complain about the bigger boobs either!! (Yeah, like that was gonna go untouched)