that was something similar to me too.. my girl was reluctant to sleep in a cot.. after searching the forum then realise many newborn doesn't likes to sleep in cot..
i tried many methods but nothing last.. until i let her cry till sleep.. starting she would cry for 30 mins then sleep till morning.. after some times she seems to know that we r letting her cry then she can cry for 1 or slightly more until i carried her n she fell aslp, put her back to cot also ok. cos too tired..
and now then we grab her pattern .. she likes to have routine n sleep in quiet n dark room. now everyday she would be aslp by 8pm.. we will leave her in the cot, close the door n lights. the most she would cry for 5-10mins. sometimes too tired never even cry then sleep.. viola!
but now weather so hot.. she cannot sleep in cot cos of the heat.. she will get frustrated n cant sleep.. so i let her sleep in sarong cradle now. ^^