I had a lost my home an still owe 30,000 on the mortgage does it ever drop from my credit report?

I had it rented and then renters stopped paying an i could not afford to continue paying so it was repossesed and resold. I still owed 30,000 on the loan. In return i got bad credit (569) what can i do to correct that. I have no collateral or co-signers for loans to pay off such a big debt.