20 years ago next week I was standing in line at Hoffheinze pavilion getting my HS diploma. Seems like it was just the other day.
Enjoy it while you can.
One thing I HIGHLY recommend is, believe it or not, start a diary as soon as you can when you finish bootcamp. It sounds corny, I know, but I wished I'd done that when I was active. My dad told me to at the time but I thought it was a dumb idea. I was wrong.