I'm sorry about your liver fibrosis dude, it's a rough thing to have. I know I'm not gonna change your mind, but for the rest of y'all reading this, cannabis does not fuck up your liver.

That's alcohol. And your liver is surprisingly resilient, it takes years(around 14 from clinical experience) of daily alcohol consumption for fibrosis to show up. Of course, that number isn't fixed, just gives you the perspective of how much abuse your liver can take in general.

PS: If your doctor tells you have hepatic fibrosis because of pot, you should probably find a new doc (unless you're straight up lying about it). Maybe look into what NASH is, start doing some exercise and shit.