Popcornbird, is there a lactation consultant that you can get in touch with through your hospital? We had one (sort of) and she was absolutely invaluable to me, not just initially but all the way down the line when we had issues. The LC would be able to help you figure out good positioning. hang in there though, it does get easier and better and the strange quirky muscles you didn't know you had will work themself out.

(The reason I said 'sort of' is because i delivered at a Vermont hospital and live in New Hampshire....and for some quirky law/code/whatever they couldn't come to my house, but could help me unless I met them in Vermont, or over the phone. It was so weird, but still the advice was so valuable!)