Thanks guys.

I've given up on using tampons for the moment, it just wasnt working for me.
They didnt literally fall out of me, but as soon as I stood up, there would be a sensation of it falling down inside of me.

I'm going to have to use tampons at some point, but ill get to that when I come to it. I'd always use the applicator properly, no problem with that. But it would hurt and be really uncomfortable when pushing the one applicator inside of the other, and even when the tampon was in as far as it should be, when I stood up and felt around a bit, the tampon would be right at the opening of my vagina.

Hopefully ill get it right.