Anyone else’s pup struggle with intestinal parasites??

Our 4 mo puppy has had coccidia & now has round worms. We’ve only had her a month and a half, and most of it has been spent at the vet. I feel helpless because we’re doing everything we can to help her and prevent further spread that the vet suggests. I am just feeling useless, stressed and worried. She’s just a baby and already has had so much medication and it just seems to keep coming 🥺 I can’t see the light at the end of the tunnel and I’m struggling 😔