Can't cope

I feel like I am totally failing. My daughter is one week old and has colic. I can't seem to burp her, even with her medicine she is still sick with every feed. It takes me 2 hours when she wakes for a feed to get her settled again. I have about 3.5 hours sleep every night. My stitches are still very sore - still stings to pee, not had bowel movement since birth. Everything is just completely getting on top of me. I cry when I feed her during the night I am so exhausted. Completely feel like giving up as I'm obviously not doing it right.