Baby won't nap????

She won't nap unless I'm holding her. Won't nap in the swing, or the rock n play, or her crib. Just me holding her. However at night she'll sleep 5+ hours in her crib. I don't get it!!! I can't get ANYTHING done during the day. I can hardly find time to brush my teeth or go to the bathroom or eat. I'm stuck on the couch while she naps. And if I try to wear her she screams at me.... idk what to do :(( why is she so good at night but won't sleep alone during the day? We've tried white noise and making the room dark