Tampons😩

Okay, so I'm 14. I've been using tampons since the first time I ever got my period around 11. And I'm usually very forgetful and there are times I'll leave my tampon in well over the time it's suppose to be. Sometimes I'll wake up and reality kicks in and I've had my tampon in for like 9 hours. But the thing is this happens over and over again. I'm very aware of TSS. And am very afraid of something like that happening to my body. But my flow heavy. And tampons seem to be the only thing that really helps me. I don't know what to do.