If you expect to get at least respect (possibly leading to more support) from your Dad, you need to come up with a plan NOW. I mean sit down and plan realistic goals that will get you where you need to be financially and educationally.
Anyone can get money for school. Student loans are available to people with bad credit, probably State backed, just with high interest rates. The school financial office has people that know how to help you. Ask them how to find grants and scholarships. The money is there. If you show dilligence, maybe in a year or two your parents will co-sign better loans for you; after all you'll have been doing something to become somebody, right?? People have dug out of deeper holes than yours. Make good grades.
If your plan includes a job, whether part or full time, then make Finding-a-Job be a full time job. Spend 8 hours a day applying, interviewing and following up. Dress appropriately and keep contacting the managers. Call them by name and make sure they know who you are and that you want the job, because people like that are who they want. Start when you hit the floor tomorrow and don't plan on stopping.
Don't play video games, they sap your intellectual energy. You need all of that now. Eat good and get plenty of sleep so you have energy.
And don't give any of that
easier said than done crap.
And stand up straight, you hear me boy!