This. I applied to pretty much every scholarship I qualified for, and probably spent as much time in my first three years of vet school doing research and extracurriculars to make myself competitive for scholarships as I did for school. I was fairly successful in getting them, and I think a total of 7 scholarships resulted in roughly $15k. It definitely helped but it was a lot of work to get them, and when cost of attendance is like a quarter of a million dollars... It doesn't seem like a whole lot.