My older daughter just completed her first year in a DVM program, so we have some experience with this. There are a few other parents on this web site who also have kids who are in veterinary programs.
One thing to keep in mind: It takes a lot of dedication and hard work to become a veterinarian. You need to be academically strong, care about the animals, put up with being bit or stepped on or “yucked” on, deal with dying or dead animals and their distraught humans, and work very hard to become a veterinarian. It is a good career for those who are driven in this direction, and who can find a way to afford four years of university plus four more years of veterinary school.
I am not sure that this is a good idea.
One issue: The requirements to apply to DVM programs will overlap quite a bit with the requirements to apply to medical school. This suggests that you will have some very difficult university classes that you need to take, while maintaining a high GPA. Many of these classes will be full of very strong premed students. You really will be a stronger student when you are 18 than you are now, and you will be a stronger student when you are 20 than when you are 18.
Neither of my daughters were premed. However, both had majors that overlapped quite a bit with premed classes (one is currently doing medical research in a biotech company, the other is studying for a DVM). I have heard many stories about classes full of very strong premed students with tough exams where the class average is in the 40’s or 50’s. The students who are strong in these very tough classes will have the best chances to make it into MD or DVM programs.
College classes that you take while you are in high school will count towards your GPA for the purposes of applying to DVM programs. You want to take these classes when you are ready to do well in them, rather than take them early.
Quite a bit of experience with animals is also valuable for a potential veterinarian. My older daughter and I both think that her university GPA and exam scores (specifically the GRE) were good enough for strong DVM programs, but her experience with animals was what got her accepted to multiple DVM programs. A lot of this she got either while an undergraduate student or after getting her bachelor’s degree and before applying to DVM programs. However, you could start earlier. She did for example have a job on a farm while in high school.
Here is some good news: If you look at the students in DVM programs (or the students in MD programs), they come from a very, very wide range of undergraduate universities. You do not need to attend a “top 10” nor even “top 100” university to get into a very good DVM program. This means that you do not need to worry about what it is going to take to get you into an Ivy League university. Instead you can look to attend affordable universities with strong animal science programs, which are not generally as insanely competitive for admissions compared to the very top ranked universities.
I think that this is a good thing to do.
Also, find time to have some fun. Participate in extracurricular activities that you find to be enjoyable.