Smellsofelderberries - firstly congratulations on your baby's birth!
Secondly, in addition to all the good, practical advice on here about tongue tie, lactation consultants etc, I would add this. Yes, breastfeeding is an amazing thing to do for your baby - but it is just one of the many, many amazing things you can do to support, nourish and encourage your daughter as she grows up.
I struggled with breastfeeding with all three of my sons - for some reason they never put on weight on my milk, and I had to supplement with formula, which in turn spelled the end of breastfeeding for me. And I felt deeply unhappy about this - I called myself a failure for it. I was so hard on myself, and I am sure that this contributed to me being depressed after each birth.
But now my sons are 19, 21 and 23, and I can look back and see things more clearly - and more kindly - and I can see that I did not fail my babies. I made sure that they were well nourished, albeit with formula rather than breast milk (and I am so grateful that I live in a society where I had easy access to good quality formula, clean water and electricity so I could feed them safely).
Once they were weaned, I made sure they ate well - home cooked food, plenty of vegetables, lots of variety. They were kept clean (well, clean-ish), warm, loved, educated, entertained, given fresh air and exercise, and taught right from wrong.
And they have all grown up to be fine young men. Formula feeding has not damaged them in any way.
So whilst yes, breastfeeding is important, it is not the end of the world if you can't and won't blight your child's life. So follow the advice you have had here, but if you don't end up managing to exclusively breastfeed your baby, don't beat yourself up. Look at all the other amazing things you will be able to do for your daughter, and remind yourself that you are an amazing mother.
Breastfeeding is a great foundation for a child - but if you can't breastfeed your child, the whole structure of their life will still be firm, well-founded, safe and strong, I promise.