Girls, really awkward and embarring question? tampons?

Lol I told you it'd be awkward. Ok I jus started using tampons 3 months ago. and normally they are ok,but when I have to change it O_O The second one I...put in...hurts. Even when it's already....up there. I know sometimes its possible to put them in wrong, so I'd try again but that would feel the same wahy. and like, I try walking around with it to get used to it but i always end uo excusing tmyself to the bathroom because it hurts so bad. It also really hurts taking it out. I just don't get why I am havng such difficulty.I use them every month, I know the proper place to put it lmao. I just dont get it. Do you girls ever have this problem? It's so humiliating because in science cl, I couldnt sit down so I was like supprting my weight and shaking. It was awfull. I could go back to pads but I dont like how messy they get, an how they make my have a weird buldge, plus they feel like diapers. ew :(