im learning to do fibreglass nails, but i have been praticing on my aunties nails. the first time i done them i used the nail tips that came with the course, and i used spray activator, and none of them came off in the whole month she had them. the second time i done them i used star nails revelation tips, and i used the brush on activator, and about 5 of them came off in a week. can someone help me? doi you think it could be the nail tips or the activator or neither???