Have you called a medical center? You may need stitches or antibiotics.
In the meantime, wash with clean water, find some clean bandages and cover the injuries. If you can just get sterile bandages for the layer that's against the skin, you're fine; you can wrap towels or paper towels around above that. Don't wrap them too tightly because that can just cut off circulation. Just securely, and press down on them until the bleeding stops. If it doesn't, call an ambulance. Otherwise, you can probably get yourself down to an urgent care center to have it looked at. If the cuts are gaping open, if you have cut any tendons, nerves, or blood vessels, you will need medical care. If they're not, if it's superficial just through the skin and the bleeding has stopped, you are probably going to be fine and should just keep things clean. Shallow cuts will heal very well without bandages after the bleeding has stopped. If you need stitches, you should get in to a medical center soon because docs won't stitch up wounds that you got too long ago, which means they'll have to heal without stitches, which means more scarring.
If you're physically okay, let's go for the cleanup. Blood is very difficult to get out of things. Any clothing you've got blood on can be soaked in cold water. Don't use hot water; that only makes it worse. Carpet can be cleaned by scrubbing with a brush; again, cold water. Don't leave it too wet. There are enzymatic cleaners, usually found in the pet supplies section, that can help get blood stains out of carpet if the soap-and-water treatment doesn't work.
You're probably pretty frustrated and desperate right now. Can't be pleasant. For the time being, perhaps it would help to distract yourself with some activity you enjoy--something not too demanding that will just pass the time until your emotions aren't overwhelming you any more. Things will be easier to deal with when some time has passed.
If you are still thinking about suicide, call emergency services or call a suicide hotline. While being in the hospital is boring and no fun, they can keep you from doing anything permanent for a little while, until you've figured out what your next steps are going to be. Often times, when a person is desperate like that, they can't see the next steps, and life seems like a dead end... in reality, there are near-infinite solutions to any problem, even when it doesn't feel like there are any at all.