I will also say that offering food less frequently helped a lot even after I got my shy little bp to eat regularly for me. It wasn't until she'd been taking meals every other week for me for months that I transitioned her to eating every week. A big part of getting her eating for me so consistently was just not overwhelming her with offering every single week and making sure she was good and hungry by the time I offered again, so even once you get your bp eating, you might decide that offering food every other week or so works better for the two of you. Some snakes might just prefer to eat less frequently while they're still young and shy - although my girl would probably eat for me twice a week now if I let her, lol.