If I can recall correctly, if I have a loose tooth, I often wiggle it, even if it hurts, with my finger, and sometimes, it falls off after some time I hurtfully wiggle it. :\
some say eating bananas or apple can help, though I am not sure about the apple. :\
also, no, I don't go to any of my friends' house after exams... :\
do take care of yourself, though.