*EDIT- BAH JUST NOTICED THIS WAS 3YRS OLD, leaving info, maybe someone else will listen*
Here is my view, im 26, and back in school going after a 4yr.
BUT, if you have screwed off in high school enough, that you have no hope of getting scholarships, might as well take it easy and finish up high school however way you want to. Once done with high school here is my suggestion. Work for 1 year. Work outside, or in a plant, or someplace really crappy. Live at home while doing it that way you do not get into a financial sticky place.
Now after working a crap job for 1 year you will see why school is important. It took me to long to do this and realize. You will be more determined, more hardcore about school if you see what your life will be like if you don't get a good job. You truelly never understand until you do it.
Some people are self motivated. These are the people who make A's in high school, get accepted to a good college, and go through it right out of high school, finish, and get a good job. But if you were like me, I breezed through HS making B's and C's because I could make A's on the test and not do any other homework or open a book.
High school means jack in reality. You can rebound from crap high school grades, but its hard. When I say hard, your going to go into college with no clue what your getting into. I didn't. I had never studied, never worked hard in school. Now I'm studying all the time, doing all my homework, busting my arse. But now I am FULLY motivated, but only because I worked some crap jobs making nothing, and realized I am not going to get anywhere in life if I didn't get off my arse and get a degree.
Basically, screw off in high school at this point if you want to, don't worry about it. Get a crap job for a year. Then go back to school, and work hard, busting arse, and blow it away.
You don't want to be like me, looking like I'll be 29 when I finish my 4yr degree. You could work for a year and still be done by the time your 24-25.