Help...completely lost with DivaCup

[doopadoo1]

 I've tried searching LJ and that defeats me.  I've been doing the u fold or the punch down and neither get in far enough.  I can't maintain a hold on the fold and get it deep enough in....it ends up popping open (not uncomfortably) and won't move anymore.  I've tried finding out what the 7 fold is on the search and can't find that either.  I've got the stem actually poking out (which I can't stand-if I tried to trim it to where it wasn't it would cut into the cup, since a very small portion of that sits out too).   I have the model 2 (had a c-section about a year ago).  
 Oh and I"m on my period now and this is the first day I've used it.
I can't even go to the restroom (number 2) without it coming out or shall we say poking out even more.  Help...please!