DIJ, admitting that you're not ready for this is the first step in becoming a good father.
My daughter was planned and I thought I was ready, until the day came that she was born. That day I just knew I was NOT ready. No way, no how. Kids do not come with an instruction manual.
Now, she's a well behaved (mostly, anyways) 16 year old. Seems like it was just last week that she came home from the hospital. Now she has a learner drivers permit!
And yes little girl hugs, from YOUR little girl are the best hugs ever. I don't get them quite as often anymore, now that she's a teenager.
Some basic rules:
#1 LOVE her, always, no matter what!
#2 Just because she may be crying, doesn't mean she's hungry, or tired, or has a dirty diaper. Sometimes it's because she want's attention. And some kids cry for no discernable reason at all, other than maybe they want to. Learning the difference is going to be rough on both of the parents.
#3 Teach her as much as you can.
#4 Experience is a good teacher, sometimes you need to let go of the natural protective urge and let kids learn their lessons the hard way. Within reason of course. This will be one of the hardest things you will ever do in your life.
#5 If you find yourself getting angry while holding her, quickly place her in bed, or in a place where she can't hurt herself, and do a 10 count while remembering that you love her.
#6 There will come a time that you and your lady will need some time alone. Hire a babysitter (that you've checked out fully) and enjoy.
Just a few of the lessons I learned. YMMV.
Bill