Hey man first of all, quit the fucking alcohol man, that shit is literally poison. As one of the other posters said, one slip up doesn't define you. I know you feel defeated, but you can possibly get a liver transplant or take medication. I'm pretty sure the liver can repair itself, as long as you dont sabotage yourself.
I know how your feeling bro. I got in a bad car accident in 2016 and crushed my spine. I've had fusion surgery's to injections, to everything else in between. I already had a bad back, but the accident just turned my life upside down. Than in 2018 I got diagnosed with IGA nephropathy, that is an incurable and progressively worse kidney disease. At some point in the near future I am going to need dialysis, or a kidney transplant. I refuse to do dialysis, I'm just now going to the hospital 5 days a week or whatever it is to clean my blood. If I cant get the transplant, which h realistically I'm not, than I'm done. Not to mention I'm only 26 and all this shit has happened too me.
I truly believe you can still live a long and productive life if you just cut out the alcohol. Also, even if it seems that nobody will miss you, I can guarantee that's not true. I used to think the same thing, and one time I came to my mom's house at 1 in the morning to crash there so I wouldn't risk a dui. And when I came in, her bedroom door was closed and I heard her devastated and crying about my health and that she most likely will outlive her own kid and her husband (my dad) already, to her friend. Dude that just broke me man, I've only cried a couple times in my adult life, and that was one of those times.
Sorry for the long post, but telling you my story hopefully will give you a wake up call and quit the alcohol, and also people do care about you, and would me devastated if you died man.
Ps, if I'm a match, I swear I would give you my liver l, so don't say people dont care about you. Keep your head up man. You can beat this.