First of all good for you!
EDIT: You need a MA hunter ed or State Police BFS certificate. Were you issued one when you took Hunter safety in MA?
Hurry and apply for the FID BEFORE you turn 18. Its only $25 now. Once you turn 18 its $100.
Think of it this way.. The 9mm was introduced in 1902 with the German Luger.
Of course technologies exist to get more energy/ higher pressures today. However, it still fits in a 1937 gun. +p and +p+ are simply a warning that your gun should be rated for such.
How they preform in your gun is...