my ds is 2.7 and will go to slepp in his bed no worries but wakes regualy
we now have ready bed next to ours once in that he'll go all night
we do story time before bed in bed and it helps settle him and un wind and we have soft play to relax half hour before bed
i'm waiting for his single bed to arrive and then i will be doing the stay in own bed technique
consistency is the key and you said i gave up so she knows how long to keep going on before you give in
read story say goodnight sleep time and keep putting her back
i had sleep therapist out to help and did work until ds had nightmare also was seeing her for speech so we decided to concentrate on that first you do need to be consistant
may take few nights of putting back few times but it'll work
no talking though just keep putting back to bed
it'll be worth the sacrifice