In need of help

Hello all.

Today I downloaded Absinthe 2.0 to Jailbreak my iphone 4.
I backed up my iphone in itunes and then deleted everything in settings as it recommended.
I then jailbroke the phone which was fine and then was in the process of restoring all my info and apps to my phone via itunes.
It was then I clicked on cydia. Cydia was preparing to load for a about a minute and then my phone restarted.
Once my phone loaded back up cydia was gone...along with phone, messages, settings, contacts and a load of other important stuff.
I did another restore on itunes, iphone loaded back up but still, no important apps.
I have tried to search for the apps with no joy. Though via search I can find messages, contacts (though I can't call anyone) I can receive phone calls though.

I feel like an absolute twonk and really want to restore my phone to how it was a couple of hours ago.

Has anyone had a similar problem and managed to fix their phone or am I screwed.

I'd appreciate your help and I apologise if I come across as a 'noob' though jailbreaking isn't something I do on a daily basis...thankfully.