I have very recently started using tampons, i followed every instruction on how to insert the damn thing, but im unsure on if Ive inserted it fully!! I dnt see it but i can feel about 1cm of wool externally. Its not uncomfortable though, but im worried it isn't inserted fully and i could end up being in a lot of pain later on.. Help?!
You shouldn't feel anything externally other than the string, if inserted properly.
When you insert a fresh one, think of inserting it "back", rather than "up". That made all the difference for me when I first started.