thank you for the answer, I just wanted to consider it as a backup plan.
To be honest, I don't think it is a good backup plan either.
Short story. My cousin, now deceased, had Crohn's disease for many, many years, like more than 30. She reached end-stage Crohns. For may of those years she self-medicated to deal with the pain. She got into some trouble with the law, and as a condition of her sentence, she was ordered to have drug testing done on a regular basis. When this happened, she started self-medicating with alcohol. She was a tiny woman and never a drinker. Within 2 years of starting on the alcohol self-medicating regimen, she pushed herself into liver failure, which is what took her life at the age of 59.
The point of this is that it took 2 years of VERY heavy drinking to reach the point of liver failure. We're talking copious amounts of alcohol of all kinds from morning to night, every day, every week, every month. It didn't happen overnight or even in a year. I'm sure that as cirrhosis set in, she had to be feeling like shit, even worse than she normally felt because of the Crohns. So, the alcohol as a plan B method may work, but you better be prepared to drink more than you ever have and never let up on it. And be prepared to go through some suffering as your liver fails you, which will take some time. It won't be a peaceful death, at least as far as I define peaceful. There will be suffering.