Combination feeding

I had my daughter 12 days ago. She’s a champ with nursing and latched right away. When I had my son I had the hardest time nursing, getting him to latch, etc. I actually had to use donated breastmilk from a friend bc his weight just kept dropping and so did my supply. I am epileptic so my medication I have to take messed with my supply. Eventually slowly but surely he became formula fed and it killed me. My daughters appetite is insane. I’ve done everything I can think of in terms of boosting my supply. I’ve changed my diet, eaten and drank all things that support a healthy supply, lactation cookies and brownies, pumping after every nursing session, drinking all the water, and eating a high calorie diet. Nothing is working and I can’t keep up with her. I seem to be running into the same problems as I did with my son. I was nursing on command but was getting absolutely no sleep bc she was always still hungry. (We are talking hours on hours of her trying to nurse.) Finally one night my husband begged me to give in and give her some formula. The look of content on my daughters face from a finally full belly said it all. My heart just broke even more. On top of it, the lack of sleep and being overstimulated caused my seizures to start back up again. I know what I have to do. I know that I shouldn’t be ashamed because I cant control the situation. But I wanted this time to be different. I love nursing her and still do any chance I can. Gosh, the guilt I feel is so immense. I’m just ranting. To all the ladies out there who can breastfeed and not have supply issues, take these moments in. I know it’s hard, and exhausting but I wish more than anything I was enough for my daughter 😭.