im sorry if this has already been discussed -im new

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Just wondering if anyone else has had this problem and if they have any words of wisdom lol
Caitlyn was toilet trained (during the day) when she was about 2 and a half..to begin with she was fine doing both number ones and twos on the toilet however for the past 10 months she will happily do wees on the toilet but she refuses to do poos-she insists on wearing a nappy,i try and reason with her but usually give in cos i dont have the energy after work and i dont want her to think of the toilet as something she and mummy fight about,making her hate it more.
I have tried :a star chart, putting tinsel around the toilet and telling her it is a princess chair,telling her if she just sits on it until the timer goes off ill put a sticker on her star chart,and begging lol
if anyone has any ideas please feel free ill consider (almost) anything lol
Thanks!