You're in college so there must be some social services available to you. Talk to your counselor or a trusted professor or a pastor or someone you trust. There are all kinds of free or low cost forms of councilling available. And let's face it, in the case of most folks, killing yourself is just plain cowardly. You think life is tough and it is. No one said it would be easy. But it's a lot tougher for a lot of other people. Look around you as see all the suffering out there. Far worse than what you're going through. I don't know what your family is like but if they are halfway decent, you can talk to them and they will listen and help you.