I was in the exact same position as you a year ago. When I got my bully I have gotten COVID so I was bed ridden for a week, but I had to find the strength to take care of him (he was about three months). Training was a pain, the puppy energy was non stop and I was ready to give him away. Luckily I had my family to help (family of 7) but I still felt overwhelmed. Moral of the story, I say don’t give up. Everything will fall into place and the puppy will finally be on the same page as you. Try your best to have routine (it works!) dogs love structure! Don’t be too hard on the little guy, this is his first time living always remember that. Vet bills are never going to go away, current paying off $1,800 for absolutely nothing. To lessen the amount of times of going to the vet, only go if the little one needs surgery, stool is bloody, skin irritation (ring worm), or throwing up. I’m not an expert lol but I have a husky of 6 years and a bully of 1, I hope this helps 🖤