The only universities that do an accelerated 4 year degree are edinburgh and RVC, however edinburgh is likely out of everyone league as a graduate, as the fees are in the 20,000’s and no funding for it. You can do the 5 year or 6 year courses at the other universities, however because you don’t have a science degree they are going to ask for more A levels, and chemistry is one you’ll definitely have to have. There’s a 6 year course at Nottingham which doesn’t have many places available however it requires less A level wise but you would have to look into it yourself.
Your 4th and 5th years of veterinary medicine will be funded by student finance (as long as you did your initial degree in 3 years), however you’ll still have to fund 3 years of £9000 a year yourself, and we get a maintenance loan but it’s not enough to pay for tuition fees and live at the same time.
You’ll need to gain the relevant work experience, each university is different so refer to the websites for what each uni requires from this.
I didn’t have a change of heart, but I did do it the graduate route, and it’s tiring and expensive. I’ve been in higher education a long time now and it’s not been easy, but if you want it enough you can get it. Application wise as a grad student it’s exactly the same as an a level applicant.