Frustrated with the best way to feed my baby

So I had my little guy on the 27th June, he is amazing however he was Jaundice at birth and wouldn't take to breastfeeding as we would fall asleep and not carry on drinking. We had made the decision to put him on a bottle. I was exclusively expressing and feeding him with the bottle up until now. After 6 weeks of doing this I managed to get him onto the breast with nipple shields. He refuses to breastfeed without them. It has been almost a week now and honestly I am not enjoying breastfeeding at all. He constantly seems hungry and wants to be on the breast and I am just feeling frustrated. When I was expressing I could tell how much he was getting and increase the amount of needed. Please no judgements I understand that breastfeeding is the best option however I don't think it's for me. Does anyone have any advice on this matter? I feel like a horrible mother because I want to stop breastfeeding as it's easier for me. Just to add I also have very large breasts and it's so awkward to feed when they are this size. Just feeling very emotional and frustrated with myself for feeling like this.