Leaving for bootcamp October 5th

I know everyone’s experience seems to be different from things they seen etc.
I leave for bootcamp October 5th for MCRD San Diego, what day should I graduate since it should land on January 1st, but it’s a holiday, will it be moved to the next week or before?

Also how much leave should I be projecting before going to ITB as a reservist?

My girlfriend also graduated December 4th, and will need to go to MCT, during the holidays so RA is very likely. When should she have to check in?