Thinking of moving to Mexico for a couple of months, best city to move?

Hello i am a 19 yr old male , who just got done with a long relationship , to make things worst i am not getting along with my parents and they don't want me to move in , i have about 4,000 dollars and i want to move in to a border city or a place not to far from the border , and rent a apartment and see how long i can survive with 4k , the reason why i want to move to mex is cuz the drinking age is 18 and over i enjoy to have a few beers also i want to get away from this whole mess and clear my mind , i will most likely move alone unless one of my friends wants to take the adventure , any recommendations as far as were to move and apartment rates , things to do , i love to party and go out and enjoy life.