My psp, BRICKED, or i dont kno!!!!!!!!!

So heres what happened:
I saved.Went out of the game and went to the home menu.Then I shut it off.Not completaly tho, just a tiny click.And then I had breakfest.After breakfest I went to go play some more breath of fire, until I noticed that the memory stick had 0 KB free of space

Then I just figured it was nothing so I went to fast loader and then when I went to memory stick it said the mem stick had no games on it.ANd everything was working fine before.SO I tried usb connection.And nope, nothing worked!

HELP!

try reformating ur mem stick, ive had problems with the my psp says my mem sticks has like 100mb free when i have i gig stick and ive only got like 400mb worth of stuff in it, so i formated it in the psp got back like 600 something mb. So try reformating it in ur psp.

also give it a hard boot, take out the battery for a couple secs and put it back in and see. Sometimes static from ur body can things like music from ur psp sound like crap. Try it and see, hope that helped.

or restore the psp back to factory settings.

I know for sure that the factory settings wont do.My friend has had this problem before and he said to re format it.ANd it worked out fine.The only thing is, theres data I dont want deleted.The only peice of main data I dont want gone would be breath of fire 3 save.
EDIT:

I have just formatted my mem stick.That was the problem.So guys, I NEED A BREATH OF FIRE 3 save!I GOT SO FAR INTO THE GAME!PLZ ANYONE!

when i DO get mt psp to ceoontect to my comp..i make a save of the PSP onto my comp..that way if i do sumen stupid and delete a file..i can just put memory back in..
i havent tried it with games.. ie) hve a game on the psp and then compy my PSP folder then later put that game back on from the folder and it still be at the save~but it could work, and i cant help you with the saves..games i play you dont "save"

why don't you install again the usb in the computer again