Jess i started last week to get him to self settle as my arms were just breaking rocking his 9kg boofhead. Some nights i have to pat (like tonight), others i just let him be, put him music on, give him a dummy and just stand in his room until he goes to sleep. If the dummy comes out, i put it straight back in or if he rolls onto his tummy (he likes to fall asleep on his side now) i roll him back and eventually he just falls asleep after not too long. Just keep at it mate.. once he's going good guns then try and let him self settle.. if he gets all frustraited then pat him but only do it when he needs it.. a sort of weaning effect maybe?

Best of luck.