What am i supposed to do if i am jailbreaking my iPod and NOTHING will work?

I jailbroke it with blackrain, added cydia, it crashes when it says loading data, I tried to do the SHH thing but it wont go into it, it says Network Error. I have tried to redo the jailbreak but it doesnt even reboot, after geohots image comes up, it goes back to slide to unlock screen. I have no clue what else I need to do! Help!!!!