I'm a 4th year veterinary student, I think if you're really set on being a vet, then maybe take a gap year and go to loads of job interviews for practice so you'll smash your interviews next time. However, I can see the course qualifies you to be an EDT which I think would be really rewarding, if you really want to work with horses I think it's a great option. I would just look into the pay differences and job demand. But it's better to miss a year and be sure then to change your mind and not get funding for a second degree.