I love animals but the business side beats me. What do I do?

You got into this for the animals, and the business side feels like it is beating you. That is one of the most common stories among people who do work they love. Loving the craft and running the company are two different skills, and no one is born knowing the second one. The business side feels like defeat mostly because it is unfamiliar, not because you cannot do it. Pricing, records, marketing, the boring parts, they are learnable, the same way you learned to handle a scared animal. You were not born knowing that either. You just practiced until it became second nature. Pick the one business thing that stresses you most, maybe money or getting clients, and learn just that one this month. One book, one course, one person who will show you. You do not have to become a businessperson overnight. You have to get a little less afraid of one piece at a time. The love got you here. The skills will keep you here.