I think some people just aren't built for tampons, I'm 21 and I don't use them because I just can't get past the feeling. Like everyone says that you won't notice it's there but, and maybe it's more of a mental hangup, I feel like whenever I move with one in it's constantly this foreign feeling down there. But maybe you just need a bigger tampon, or a smaller one? My friend has to use the biggest ones in order for them to work. Like the girl in mean girls, maybe you just have a wide set vagina lol 😂 (im not even sure that's a legit explanation lol just wanted to make the reference)

Me neither. Mine always leak no matter what brand.

Maybe you're inserting it off to the side a bit?