Hugs xx I remember feeling like that a few days after my first was born. My hubby went home for a shower (he was coming back to stay overnight) and I just burst into tears and cried the whole time he was gone. He came back to find me still bawling my eyes out. I just felt so overwhelmed. So it's completely normal for you to be feeling like this!
Just take it one day at a time. It does get easier. Please keep asking for help from the nurses when you need it. It's part of their job. Breast feeding can be tough, but if you get help, you might find it gets easier for you.