(Tips from an incoming DVM Year 1 student)
1.) don't be afraid to be raw and authentic in your supplemental essay responses. They want to see who YOU are, not who you think they want you to be.
2.) Do thorough research on where you want to apply and compare their requirements. If you're applying to 10 schools and only one requires you to take, say, an extra Ochem or Bio class...think about if you really want to put your time and effort into that extra class for just one school. (Same applies to schools that do/don't require GRE/CASPER)
3.) Start on your application as soon as it opens, it makes it way less overwhelming.
4.) Have backup options for LOR. Things happen and sometimes a LOR might Fall through a month before applications are due.
5.) Your volunteer/research/clinical experiences should reflect your interests! If you aren't interested in doing wildlife veterinary medicine, you don't have to volunteer at a wildlife rehab center JUST so you can say you've worked with exotics. It goes along with #1 but I think it helped me a lot during interviews to be passionate about all of the research/experiences I had.
6.) It's okay if you aren't sure what you want species(s) of animals you want to work with or if you think you'll change your mind later. I think it's good for the committee to see that you have goals but can also recognize that you may change your mind as you grow throughout vet school. Lots of people start in SA but expand to LA, or want to specialize in one thing but maybe end up in research.
I didn't get any interviews/acceptances my first time applying but got 2 interviews and an acceptance my second time. Don't be discouraged, y'all got this!