Why do you want to be a veterinarian?

I've always wanted to be a veterinarian since I can remember, with my cousin we  saw dogs on the street and we said that some day we could save them. That still  my dream. if I had to say that another thing I wanted to be, it would be a singer, I've always liked singing since child but I am very shy to face an audience. I've always wanted to be a veterinarian because I feel that I can help, to heal animals, I can't see me in something else that is not related to the animals, just want to help them.
 Well  in the university I have learned a lot but  I can´t adapting yet . 
 I don´t know yet the  area that I like more, I feel that could be in clinics or wildlife, but what I do know is that I would like to have an animal shelter, for abandoned or abused animals, and then give them for adoption.