Continue keeping a strong GPA and building relationships with faculty.
Consider becoming involved in undergraduate research.
Gain more experience working with animals both large and small.
Start researching vet schools to which you will likely apply and add any specific prerequisite courses they require into your remaining semesters - https://www.aavmc.org/Students-Applicants-and-Advisors/Veterinary-Medical-College-Application-Service.aspx.
If you have not already developed a relationship with a veterinarian, do so now.
