Twin sister - everyone has already given you such good advice, I will just offer you some support. I could have written this post 8 weeks ago and now my DD is 10 weeks. I still seem to have an oversupply but I am more used to it now and so it my little one, we are both learning together. I still do one sided feeding (with the exception of an occasional afternoon feed) and it works well for us. You are doing such a wonderful job BF your baby, clearly she loves being on the breast! Hang in there - things can only get better from here.