I'm really sorry that your father spoke to you like that. It's just really sad.
Never give up! I think the best thing right now is to take some action and that's how you will get out of the hole. Get rid of the alcohol. A good place to start would be to volunteer somewhere in your community. It's a great place to me new and sober people. It could help you in your job search and to feel better about yourself. Talk to your dr about the depression. It's possible that medication could help and make a difference in your life.