Mary, try again with a different nail tech. For example the one I have now pre-paints the nails with two different colourless liquids prior to applying the acrylic. None of the others did that.
Whether or not that makes the difference I don't know, but I cannot imagine that you subject your hands to the same abuse that mine get, and my nails stay intact.
I would ask her what the liquids are, but I am about as fluent in Vietnamese as she is in English.............