Just to jump on to reiterate what
@Chickenandgravy said. I'm 6 weeks in and I felt exactly the same as you. And I was sick of people saying 'enjoy your sleep because you won't have jt when baby arrives'
But honestly,iv found it a wonderful experience. Even on the bad days. Life is different, I won't lie. But it's in a wonderful way, and a more enriched way. Of course it can be tiring and there are days you want more sleep but you get through it hun. Please don't listen to other people when they paint this grim picture. I swear people just like to say it to make new mums have the fear!
Sending you lots of love and please don't worry, there's so much to look forward to xxxx