have you tried filing them down over the top, loula! Can you afford to see a chiropadist? If just for one visit, to show you how to trim and file them properly.
Toe nail fungus does take a long time, the point of the varnish is to stop any air getting to the nails so you can miss any of it. It does take a very long time, im afraid. You have to pester your gp for it too, did he stop it, at the time I had it, I Was informed it was a very expensive treatment and he didnt want to waste it if I Wasnt going to do it properly.