I'm feeling exactly the same. Even now at almost half way. I kept nothing down yesterday, though I do have some good days.
I would just stick to eating the crackers. Anything you can. It doesn't matter what it is. Even if its just a piece of chocolate. If you can keep it down eat it. Worry about being healthy later.
Drink plenty of water & fluids.
Soups might be easier. Just remember that it's probably only you suffering. Baby will take what it needs from you & you will feel worse for it. But baby will still be healthy & happy in there. (not much of a consolation, huh)
Blackmores do have a morning sickness formula, mostly made up of ginger you could try. Didn't do much for me, but a friend swears by it. There's also ginger tea, ginger beer & ginger bikkies that might help.
Other than that though, I don't know. Nothing works for me.