smoking marijuana

i used to smoke marijuana..i quit dec.3..for xmas i got some milk thistle and colloidalsilver.i have been diagnosed with hep c.i was wondering if the marijuana is bad for my liver? not that ill smoke it again.i take 1 teaspoon of the silver..i started dec.24 and about 30 drops of milk thistle a day in hot water.so far i have no pain but loss of appetite.i have been drinkiing power shake every morning cause even a little food seems to fill me up.i like drinking better than eatting and if i could be healthy id probably never eat and just drink.can u give me any advise about drinking instead of eatting?i just had tests done and no results are back yet so i dont know whats happening except i have hep c.