Although, one thing did piss me off today: the entire ecology section in the Natural History Museum was locked off for changes. And it was the one section that I needed most for my work (I'm basing my current art project off plants and wood and such). But then again.. there were tons of dinosaurs, so yay. :3
Damn, still have some Grocery shopping to do.
Okay, rant over. Seriously though, you are nowhere near screwed. Not even close to it. As others have said, a high school diploma or GED is the only requirement to get into community college. Simply graduate high school, and you're in. The instant you register for your first class in community college, your high school record is effectively erased. It technically exists, but no one will ever want to see it again. They won't care in the slightest what you did in high school - they'll want your college transcripts. All you have to do is scrape your way out of high school and then start putting in some effort in community college. It's like getting a "do-over." All of your past mistakes are meaningless - only what you do from here on out counts.
As long as you do relatively well in community college, your state university will welcome you with open arms. As long as you do relatively well there, you'll graduate with a Bachelor's in whatever field... and from that point, the fact that you have the piece of paper is all that matters. Where said paper came from is important if you're going for a high profile job. If you just want ordinary work like 99% of the country, the existence of the paper really is more than enough.
TL;DR High school teachers and parents fill your head with how world-ending a bad HS record is, but they're full of it. They do that to scare you into doing well. Don't fall for it. Do well on your own, and stop beating yourself up for what you can't change anyway.
[22:14] <+Lia> And why is Ruken molesting trees?
[22:14] <@Rukentuts> Because they give me wood.
[22:14] <+Lia> ...
[22:14] <+Lia> worst pun ever
[22:15] * Rukentuts boughs.
Also, small other secret about those people with 4.2 GPAs... a lot of them get into their elite schools and fall apart. College is a completely different beast than high school. You really can't go through life worrying about what other people are doing or getting. All you have control over is yourself. So you need to focus on the things you can do to get where you want to go (which you probably don't really know for sure yet because most teenagers don't really know themselves well enough to make those choices and that is actually fine).
You mentioned you never do homework? I also never did homework in high school. I personally didn't need to because in all my classes I could get A's and B's without it so I just didn't do it. The problem was, college is different. I screwed myself over because when I went to college the first time I had zero study skills. I had other issues that compounded and I ended up failing out of college the first time. Also it turned out that I apparently had ADD the whole time but no one ever diagnosed me with it because when I was a kid people didn't do that, and then when they did all the focus was on ADHD and since I wasn't hyperactive everyone was all "oh she's just a creative type"... and hogwash... For me getting that sorted made a huge difference. Every now and I again I wonder what might have been different if they had diagnosed me sooner... but that's pointless. You have your own path to walk and figure things out, honestly short of killing a bunch of people there really isn't much you can do to mess your life up beyond repair. It's hard... but it is definitely worth the effort.