How can i swing a bathroom night light fixture??.....? my anchors keep pulling through my drywall and very soon there is...

my anchors keep pulling through my drywall and very soon there is no where on earth to fasten the plate that holds the fixture.any suggestions???
Answers:    Can you drill a tentative hole in the plate at a different spot? Use toggle bolts or try to hit the stud and use wood screw.
follow the instructions, you need to find something complicated like a stud to out of harm`s way it to...drywall is not strong enough.