The problem is I cant seem to get it in far enough so that the bottom doesn't stick out, it either pops open and i cant push it in any further or if i'm holding it between my first finger and thumb i cant seem to get it all in. If by some miracle I get it in it wont pop open and wont seal. And then getting it out is painful , is there any way to do it without folding the cup up inside you??
Help!! need to know how to insert it the whole way and how to pop it open.