just a quick Q, I know i'm late in the conversation but how long are you persevering with changes before trying something else.
I suggest this as most changes to a routine take anything from 2 weeks to 4 weeks to 'sink in'.
Ever since Q was really young we've done a set routine, started as pjs, sleeping bag, boob then bed and it's slowly built up with distinct changes to what is now bath, pjs, sleeping bag, song/story whilst drinking his milk (we stopped bf at 19 months he self weaned) then put in his cot and i lay along side his cot for upto to an hour some nights as Q fights his sleep. though normally once hes' asleep he does a good stretch.
co-sleeping never worked for us either, we kept waking each other up! at almost 2 he will sleep in our bed now but we sometimes become figures of fun - climbing frame etc!!
Good luck