Hun, big BBs can make it really difficult, but it does get easier once bub gets a bit bigger and learns what to do. I have a friend who couldn't manage to feed without a bfing pillow until her DS was well over 1. I believe that LCs don't recommend using pillows now, but I know it really helped her. Have you tried feeding lying on your side?

I'm not sure what else to suggest, but I encourage you to stick with it. It will get easier. In the meantime you are doing a fantastic job. Hang in there hun.