Katerss, I'm with others here...
please know that grades are nothing to contemplate suicide over. The person who graduates with the lowest GPA in medical school is still called "doctor". And believe me when I tell you that book smart does not equal "real world smart" when you become a professional. Sometimes expectations fail us all, and the only person you are truly accountable to is yourself.
As a teen in college I did total shit, and paid the price for it by being academically suspended twice. It's embarrassing when you look back and see that your gpa for that time is a 0.8. Yeah. Zero point eight. Like, F minus territory. It took until I was 21 and a few years in between before I realized what I needed to do and could make up for the mistakes I made.
The point of college is learning how to learn, and gaining knowledge in a variety of different subjects that will (supposedly) help you gain a foothold in society and make you a productive member of it.
That doesn't mean that anything below an "A" isn't good enough, at all. Just because you don't get an "A" does not in any way mean you didn't grasp a subject or do your best work. I had an instructor, actually more than one, who never gave out A's. Ever. There were no bell shaped curves in those classes. Oh, and they sucked as professors, too...but I digress.
You are still your parents' amazing child, you are just having to come to grips with a difficult situation.
No reason for them to lose faith in you, or for you to lose faith in yourself. No reason whatsoever. The best grades don't indicate future success, that has many more factors attached to it.
Sarahric puts it well, no one is going to ask your gpa in a job interview. No one. It's simply not important. College is just as much about experiences as it is about learning. Sounds like you're too burdened in one area to even consider the other, and I hate that for you. Please, please don't do anything crazy.
If you need to, talk to your professors to see what it is you're doing wrong or what you can do better. Or, (and it's just a suggestion)..take heart in the notion that sometimes a perfect gpa is beyond reach. I realize that might be a little insulting because you've always been great and your parents have such high expectations, but it may just be that way for now. Doesn't mean things won't change next semester, but for now.... Keep plugging and studying and you'll get through it, perfect grades or not.