I hope your dad gets better and you'll never end up in something similar.
My grandma drank herself to death, which is the reason I never met her. Alcohol can go so wrong. For me it's one of the joys of life, and a very good medicine for cold, nevertheless it's tough to hear stories like these. I'd say everyone needs to find happiness in their life and come to terms with it, you know, get this tranquility of mind, but in a mental state like this... I get that.
I can only wish y'all strength to carry on. I'll pray for you.
Also Vector, I obviously don't know a thing about your studies and goals, but lemme say, don't get too fixated on it. School has been a big contributor for my own dark periods, and when I missed my chance at university it really hit me hard. Then I got a job, and forgot. I'm adding to the house cash pile, my week has never been busier and I have never been happier. Now don't get me wrong, the pay is quite sad
But I don't care. And I'm seriously considering not getting degree at all and just build everything on experience and skill. I've always adored my father for that, he didn't go past high school either and from a bunch of similarly low-paying jobs got to sheltering a family of seven, quite an achievement. The again, his high school actually qualified him for some professions, mine doesn't grant me anything. Well, on the bright side, I might aim even higher than him, it's almost a thing of honor for me now! Even if I had to live poorly for the rest of my days on Earth, I think I'd take it. Because I know, I would be happier that way. It's not much, but it's honest work, as they say.
This is not in any way telling you to just throw education out of the window, again, I have no idea what are you pursuing and how it matters to you. Just letting you know, you might find fulfillment elsewhere. Stand strong.