Babies with GERD

Hi mommas!! I'm a FTM and my LO is 4 weeks and has been showing many of the signs associated with GERD, do any of you have any remedies or tricks that helped your LO with coping with it? It gets SO much worse at night and I feel bad about it, usually end up giving in and just letting him sleep tummy to tummy with me at an incline to help him. I EBF and have overactive let down so I have been pumping for a  couple mins before he eats to slow the flow and feeding in a reclined position. Gripe water seems to help but sometimes isn't enough. Any advice would be appreciated, Thanks in advance!! 😊