Im 14 going on 15 and cannot insert............Plz help

My Tampon alright i know you guys r going to say dont stress out and be loose dont tense up, but im as calm as a leaf after about 10 tries im being very patient w/ this cause i need 2 get the hang of it. Like on about 2 or tries the tip went in but not the rest why is that is is my hymen or what. im playing a sport so i got playtex sport w/ a plastic applicator and its regular flow absorbency. My period came on today on my second day of high school and i was reallly bleeding through my new dark skinny jeans. I dont wanna have 2 go thru this @ all asking the teacher can i go 2 the restroom cuz they are goin 2 tell me no. and i have male teachers so its gonna be difficult 2 explain 2 them just akward. so i wanna learn how to put this frickin tampon in to save me some time and trouble in schoolPlz help how do i get it in all the way