Should I work in my dream career or make money? Please read details to understand

I work with animals, I hardly make enough to make it by my self let alone support a family or have many pets. Working with animals is the only thing I have ever wanted to do, and I feel like it is the only thing I am good at. I have 2 degrees in the animal field, even with both degrees and 10 years of experience I still do not make much money. Today I had to send a stray dog with a cop to find it a new home, the 5 minutes I spent with the dog I got attached as usual. Now I am debating if I should leave the animal career, going to a job that I will make 2x as much money, and then start a family and rescue animals. But I feel torn because I will be wasting my education and also leave the career I love. I have been crying on and off all evening because I feel guilty for not doing more for that scared dog..... this sucks