Rough night

My baby sleeps so hard for hours and hour in the late afternoon/early evening. Can't do a thing to wake him up. That mean at 10 he wakes up and is wide awake. He fussed and cried and faught sleep all night long. I was crying and frustrated and wanting to give up. He didn't end up falling asleep (on me ) until 6 this morning and only for an hour or so. Any tips of avoiding this? We are 2 weeks pp