Menstrual cup

Kinda sad I got a my femmy cup bc I liked the idea of no spill cup but .. I can't get it to pop open. It stays folds up.. (inside me) which makes it leak. And I try and try and try and I twist it and kegal and all tricks. Even cold water on cup bf I try. So I'm looking for support bc I'm about to give up and go back to soft cup but that leaks tooo. Help.. should I try another cup or what?