Congrats and thank you for your commitment. Been there (Paris Island) and done that 30 years ago.
If it's still like it was, it is broken down in 3 phases. Phase one: It will tear you down, no matter who you think you are or who your daddy is. Phase 2: You will recuperate and recover. Phase 3: It will build you.
I promise it will be the toughest thing you will ever do, then love afterwards. I would never trade the experience, but don't necessarily want to do it again.
When you finish, get in touch with us. Then you will have earned the "Semper Fi Brother" status that only a few can claim or understand.
Good luck future brother, Mac.