Im bleeding so much im going through a tampon in less then an hour please help?

If you're going through a super or ultra absorbency tampon within an hour then you need to see your doctor, possibly go to an emergency room if the bleeding is heavy enough to suggest hemorrhaging or if you start to feel ill. If you're leaking through a lighter absorbency tampon then it may simply be that you need a higher absorbency tampon for your flow. Heavy flow itself is not a problem, if you're in your teens your flow may tend to be heavier, if your heavy flow continues it's best to talk to your doctor about lightening it with tranexamic acid and looking into why it's heavy.