Send help

I’m getting soo frustrated with naps! She will happily sleep on anyone to have naps she nap in the car pram but hates her cot! Put her down and she wide awake We’ve been trying naps in cot for about week and half And it’s not getting any better probably worst. We have no problem at night she happy to sleep then! The trouble is she soo fussy now because she over tired! I only have happy baby in the day if she sleeps on me! I know were i went wrong her napping on me for so long! Anyone else going through this? Or tips to help?