Yes, relax. I now it sounds simple but it dose help.
I had a similar experience, my first child didn't take to the breast and I tought there was somthing wrong with me. The LC had me totally streesed out and I finally gave up. So my secound child (now 10 wks old) was my last chance. I went into it with the attitude that if it didn't work that was OK because my first turned just fine.
Have you tried to switch feed. (Feed on one side for 5 minutes, switch to the other side and feed for five minutes, switch to the other side and vic versa until you empty.)
My son would eat for about an hour each feeding at first. Maybe your supplies just hasen't come in yet. How old is the baby? Have you gone back to work?
Do you have a good pump? You can pump for 15 mins after every feeding boost your supply.
What ever happens enjoy your baby and don't beat your self up too much if breast feeding dosen't work for you. Your first child turned out OK, right.