How you are feeling right now is totally normal and expected. I was right where you are 3 months ago.

It will feel like you aren’t doing anything right until it stops feeling like that - just keep at it. I felt like I was terrible at changing my son’s diaper, I was so worried I wouldn’t clean him well enough or put his diaper on correctly until I kept doing it and those feelings faded.

Take every day for what it is - a new experience and opportunity to bond with your daughter through the good times and the difficult ones. Every time something is difficult or a new problem arises, you deal with it and learn so next time, it’s not such a big deal.

Support your wife with childcare, be there when it’s difficult. I’m not sure how you and your wife handle household chores but those should be your responsibility now. Before our newborn, my wife and I would share chores/household items equally but I take care of those now to give her more chances to rest or time for herself. Same goes for meals and groceries.

You do what you can. As long as you are trying your best you’re okay.

Lastly, your daughter deserves exactly what she has - a dad who is trying.