What should I do ?Watch
It sounds as if you and your boyfriend are working against each other, rather than with each other - which is easier said than done I know! It might be better, if your boyfriend has the baby for a bit, to let him soother him/her or get him/her to sleep, rather than grabbing the baby to try and do it yourself. Babies cry all the time - it's the way they communicate- and it would be good if both of you learn how to respond. If you grab the baby when he cries and you boyfriend has him, it might make your boyfriend think you don't trust him with the baby, which might be why he is running you down. He probably feels he doesn't know how to look after the baby either, and is taking our his frustration and lack of confidence on you.
You do need to sit down and have a chat with your boyfriend. I'm not a great believer in a strict routine for very young babies, they need to feed and sleep when they need to, but having some plan in place for feeding times and sleeping times might help you both feel you have some control back again.
Maybe post this in the relationship forum (rather than the A level one)where more people might be able to help. Or post on somewhere like net mums, or find a local Facebook page for new mums, where more people will understand what you are going through. And take care of yourself