I agree I remember when I first started and a few weeks in I noticed moisture coming back into the lips, was buzzing - seems so weird saying that. Then other little victorys like noticing a little layer of skin in the underneath area of the lips for the first time so that talking became easier. Then noticing lines again in the old raw areas showing that the layers of skin is getting thicker. Then the time when I steamed my lips, rubbed off the crap and then realised how much I had improved as I could go out for the night with no dryness at all and was just like having normal lips. Now just had another moment where an area that has always gone white when eating has stayed red and the skin can clearly be skin quite well healed now.
Like you say it is a very long process and can be very frustrating but just got to keep on keeping on I guess. No other option - no miracle cures and lip balms, creams etc are the enemy!!!