Nottingham has a flexible admission policy, for example. Last year, I applied (I'm an EU student) and never thought I'd get into, but I did in the end. My work experience wasn't varied compared to the other candidates (I had seen 2 small animal practices, a riding school, a cattle farm and a dog training centre), but it doesn't really matter how many places you've been to, but rather what you have learnt from each of them. The Admission team look for candidates who have a passion for vet med and who can uphold the RCVS' standards.
That being said, you have lots of work experience. And even if you didn't, they understand that people have different circumstances and don't discriminate against you for that.
Just be yourself on interview day and try to convey to them how much you really want to be a vet. Show passion, intellectual curiosity and a bit of confidence.
Everything should be fine in the end. Good luck !
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