repossession 2009

in 2009 my house was repossessed when the recession hit, i had protection insurance on the house but was told that because i was self employed it meant nothing (yay). i had a loan also at this time. i ended up moving home to my moms and never heard anything of the mortgage people (northern rock). and after a year the bank (llyods tsb) stopped sending me letters. its now 2018 and i have a house (mortgage through my mother and wife) i would like to take over this mortgage and try to rebuild things for my family. i went onto clear score today to see what i owe to who and check my credit ratings, my rating is 359 and there isn't a single open account on it apart from my EE mobile phone account i must still owe someone somewhere but am clueless as to how to proceed. where can i find more information on my still open debts please? thanks for viewing and any help