What am I doing wrong??

CA2006

DS was a major sleep fighter and DD has proven to be a sleep fighter the past few days, too! It doesn't matter whether we catch her at the first sign of tired or the last...she is impossible to get to sleep.  I just spent 2 hours trying to get her to nap. 2 HOURS! Just finally got it to happen (maybe) with the Moby and yoga ball...for 45 minutes. With a toddler, i do not have the time to be doing this. Same thing when DS was a baby. I can't help but think it's something I do or have done Drowsy but awake is a sick joke in this house. Once I finally do get her down, she wakes with gas/poop or wakes to eat. She hates the car and the carseat and won't go to sleep in the swing. WTF?  How do I stay sane? Am I alone?