Based on the numbers you posted, you've got $711 after bills/expenses/savings each month (assuming $2,900 paycheck is post-tax). I don't know how much you spend on food/cigarettes/etc, but even if it's $200/mo each (which sounds like a lot for cigs, but I've never bought any so I'm clueless there), that still leaves over $300/mo.
If you can throw that $300 towards your dad for the car, you'll be squared away with him in just about 3 months.
Then you can throw the $800 towards your credit card and knock that out in no time.
I'm not a huge fan of cooking (especially for 1 person), and like you I like the "easy to grab and eat" meals...so I find it works best for me if I can make a lot of food on the weekends when I have extra time, and then I have leftovers to eat during the week.
I also try to go out and be social at least twice a week - instead of going out drinking, though, I'll join a friend for dinner (at their house or mine, so it's cheaper than eating out), or go to a museum (also free), or play board games (also free, after the cost of the game). If you and your friends have hobbies in common that can be done cheaply, try suggesting you do that rather than go out drinking.
For the month of November, try carrying around a notebook and writing down everything you spend. Not only will this give you a better idea of what you're spending money on, I've also found that having to pull out the notebook and write something else down will often prevent me from spending the money in the first place. (For now, though, perhaps just start with what you'd spend anyway, to get a baseline.)