homes with conflict are one of the most terrible situations on earth. The thing which got me thru some times was remembering that all things are temporary. It seems you are young, and perspective on time scale is really hard to have when you're young. It will be over like the blink of an eye, though, and I think the main thing is try and limit the trauma it causes you. Don't obsess over this, but, the more it upsets you, the more time it will disrupt in the future. So try and be calm. Don't analyze the actions of ppl as though they are rational actors. This sounds like mental illness, and you just can't hold that to the typical standard of morality, although you can and should protect yourself from it. Don't waste time hating your father, as much as you can avoid it.
One stupid trick is headphones that block out the sound of fighting. Just making a habit of using them can shield you from even noticing some fights happened.
But the main thing is to keep focus on your work and get through things, and time will change your situation. You could also maybe get a job, if it could make the difference between needing your dad around. He sounds like a toxic character, and it is fair based on your description to get him out of the house if that can be managed, I think. But if it's not an option, just be strong and think of future love.
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