Here are my stats:
GCSEs: 4As, 7A*s
A levels: A*A*A* in biology, chemistry, maths
Work experience (15 weeks total): 3 weeks small animal practice, 3 weeks mixed practice, 1 week boarding kennels, 2 weeks riding school/livery yard, 1 week visitor farm, 1 week lambing, 1 week dairy farm, zoo volunteering, 1 week lab
Extracurriculars: orchestra, choir, trad music, horse riding, school prefect (music and bio I think), public speaking and biomed enrichment courses through school
Universities: Cambridge (offer and first choice), Liverpool (offer and second choice), Edinburgh (invite to interview but withdrew my application), RVC (interviewed but wait-listed then rejected)
Tips: Great advice above. I would recommend keeping a log of what you do on placements and what you’ve learned so you can relate this to the profession during your personal statement and interviews. Also be prepared to talk about the skills you've developed both on placement and in life and how these will help you. Do practice interviews if you can. You can also stay up to date with current veterinary affairs by reading newsletters/magazines such as the Vet Times. Be sure to get a variety of work experience - practices and lambing are pretty much a must. Good luck!