good to hear, mate!
keep it up and be patient!
i reckon, it's possible that the remaining 80% may take longer than 4 times the first 20%
so keep it up and don't look into the mirror at every occasion (i don't think that you are doing this but I'M doing it, so... :D)
don't overdo the glycerin, i'm sure it helps but if you cured 20% by applying nothing, i'd continue that way
maybe apply it here and there, for example after washing your lips or washing your hair / taking a shower / exposing them to amounts of water that dry them out extraordinarily (same way we put moisturing cream on our hands or faces when they become very dry but not all the time)
good luck and keep reporting when you feel it's useful!