Welcome, your parents did the right thing!
You been robbed of a normal teenager life.
If your girfriend wants to break up it is time to move on.
You know what you do not want and that is to be a JW. You can control your life but try not to control anothers.
Granted life might get lonely but it is tme to focus on your self and break the JW mind set.
Try school for awhile and walk away from this relationship.
It would not be a good match and you will find love again.
The best way to get over a broken heart is make sure you have distance, no phone calls! That way your heart can heal and life moves on.
Arguing over doctrine sucks.