WTF happened to my iPod Touch ?

I was looking for cydia installer so i downloaded limera1n and i launched it . When i started it it said " make it rain" so i clicked it (iPod was connected to ma laptop) and it erased everything ! Now i have to download ios' latest version (still downloading) please tell me what the F*ck happened pleaaassseee someone and i have to put everything back into my iPod uhhhh i hate itt