I cant find my vagina!

So me and my friends were going swimming and i realized i was on my period i told my friends they said dude just put on a tampon note that i had never used one my friend told me how to i went to the bathroom with a mirror and could not find my hole! After a while i found it and i didnt put it in all the way and if i stood a certain way or laughed i felt it slip out a little so we were swimming and i didnt feel it anymore and thought oh finally i got used to it but it turns out it sliped out and was laying there on the floor i hide it and continued to swim because for me my period kinda go on and off and no blood got on the pool and i changed into a pad when i was changing we walked back to my friends house and my friend said you gotta use the bathroom to switch i said no i already did she asked where did you put the tampon i said in the pad wrapper. And to this day they dont know this and i intend to keep it that way