12th Grade Again Or 13th Grade And Jenna Elfman?

Last night I remembered part of my last dream fragment, I do not know how it began exactly, but I remember being in either 12th grade again or some new 13th grade; somehow I had a small pistol, I am not sure where it came from, but I think it may have come from a gang or mafia or something at the school.

I just remember walking with my bookbag on in a building that looks like an unknown college that is in my dreams sometimes, and I was trying to find my locker and lock combination and trying to find a quiet place so I could hide the pistol in my bookbag; I think I had taken the pistol from someone to avoid them using it or something, I am not sure.