Why can’t my life just be normal

I don’t understand why I can’t have a normal like like other moms . Why does it take 7 hours to put my kids to sleep every night a 5 month old and a 2 year old .. I just go back and forth for them crying from bedtime routine to about midnight when they finally fall asleep. My house is a disaster because I don’t have 2 seconds to pick it up at night because by the time they are sleeping I am falling over tired to wake up with them at 6/7 am all over again . I am so miserable I am losing it