For me, breastfeeding utterly terrified me. I was terrified of having to keep my baby alive all by myself, when I felt barely alive after an emergency c section and very rapidly declining mental health. I remember feeling absolute panic that he would be literally dependent on me, and I knew that I wasn't up to the job.
So i switched to formula quite quickly, out of sheer fear that my son wouldnt take a bottle after a certain point. I think NCT had really scared me into thinking that you basically had to breastfeed and not introduce a bottle - to the point where I thought, well, it's one or the other.
What i would tell myself now is that it doesn't need to be one or the other - lots of babies are combination fed, and happily take the bottle and nipple. So maybe that's something to consider, doing a bit of both? it might help you get more sleep, and more time to yourself, but equally, it might help your hormones settle more slowly, and still have the bonding benefits of breastfeeding.
A last point though - feeding feels so important in the early days, and i guess it is, because it's all you're doing really. I felt like if i couldnt breastfeed my baby, then there wasn't really any need for me as a mother. That's classic PND chat right there. Things couldnt be further from the truth obviously, and now my son is nearly 2, I see how little it matters how he was fed, and how much he needs me for reasons unrelated to my tits! Good luck xxx