First...the tuition. Are you employed? If yes, of course it depends on how much money you make. There are grants and loans. Loans do not have to be paid back until you finish school. Grants are free money. Also, most colleges have emergency funds stashed. Get in early each semester and ask for it. Use everything that is negative in your life to your advantage. For example, your father is an alcoholic. Look for grants for that. Also, look for employment in the field of your interest and often you will find funds for higher education there as well. Like NIKE says...just do it! Bartend, wait tables, clean houses on the side, whatever it takes.
Get busy. The more you fill up your time, the closer you get to your goal, and the less time you have to think about all the issues in your life. I always say... People either add something to my life, or they take from it. The takers ? They don't get much space or time with me. It is not wrong to say to someone, I love you very much and when you get your sh_t together, give me a call. You will be amazed at how fast the drama will move out of your life, leaving you the time and energy to focus on more positive things.